Penis Math Problems Dare

KindMistress · 10-15-2020, 10:21 AM

Hello, my darlings!

Here's a simple mathematical dare for all the penis owners amongst us.

Step 1: Measurements

First, we will need to know the length of your hard penis and its circumference. If you know them already, move on to step 2, if not, it's time to measure up! Round to the nearest millimeter.

Step 2: Math problems

For this step, we will assume your rock hard cock is a perfect cylinder

Using the length and circumference from step 1, I want you to calculate the following:

radius and area of the base
volume and surface area of the cylinder
how long your dick would be if it had half the radius, but the same volume.
the circumference of your schlong if it was 50cm long, but kept the same proportions it has now.

These are all simple problems that each of us covered in school, so I have no doubt you will solve them easily. If not, feel free to Google the necessary formulas. And please, do not just post the results, either, I want you to show your work. Being a European lady, I want you to use the metric units in your calculations, but since we're all from all over the place, please convert the final result to imperial, too.

There won't be any rewards for correct solutions (knowledge is its own reward, after all), but there might be punishments for mistakes.

Oh, and one more thing: I want you to keep yourself hard the whole time while you're solving the problems.

Hope to see your solutions soon, darlings!

trans_slave_mel · 10-15-2020, 11:09 AM

OK, i'm 89mm long (3.5 inches) and 120mm circumference (4.7 inches)
radius equals 19mm and area of the base equals 1134mm or 11.34cm
volume equals 102cm and surface area of the cylinder equals 130cm

how long your dick would be if it had half the radius, but the same volume. it would be 35.9cm
the circumference of your schlong if it was 50cm long, but kept the same proportions it has now. Would it not be the same at 120mm or 4.7inches?

frankmarano · 10-16-2020, 11:00 AM

Hello I am : 148 mm long (h) [5.82 inches] and circonference : 114 mm [4.488]
Radius = 18.144 mm [0.72] A=1034.227 mm^2 [40.73]

V=153065.596 mm^3 [6026.20] Asup=Ab+Al=1034.227+16872.311=18940.765mm^2 [745.69]

h2=592 mm [23.30]

if h3=500mm (50cm) --- circonf=385.135 mm [15.16]

frankmarano · 10-16-2020, 11:01 AM

Hello I am : 148 mm long (h) [5.82 inches] and circonference : 114 mm [4.488]
Radius = 18.144 mm [0.72] A=1034.227 mm^2 [40.73]

V=153065.596 mm^3 [6026.20] Asup=Ab+Al=1034.227+16872.311=18940.765mm^2 [745.69]

h2=592 mm [23.30]

if h3=500mm (50cm) --- circonf=385.135 mm [15.16]

KindMistress · 10-18-2020, 12:03 PM

@trans_slave_mel I'll give you a chance to look at your solutions again.

@frankmarano smart boy!

frankmarano · 10-18-2020, 03:57 PM

Thank you mistress easy task lol

beof95 · 10-19-2020, 03:35 AM

length is 15.4cm (6.06inch), circumference is 15.2cm (5.98 inch)
radius: 15.2cm/(2*Pi) = 2.26 cm (0.89 inch)
Base: (2.26cm)^2 * Pi = 16.04 cm^2 (6.31 inch^2)
Volume: 16.04 cm^2 * 15.4 cm = 247.11cm^3 (97.29 inch^3)
Surface Area: 15.2cm * 15.4cm + 2* 16.04 cm^2 = 266.16 cm^2 (104.79 inch^2)

half radius length: 247.11cm^3/((1.13cm)^2 * Pi) = 61.6 cm (24.25 inch)
50cm long circumference :
new radius: 50 : x = 15.4 : 2.26 => x= 50*2.26/15.4 => x=7.34 cm
new circumference : 2* 7.34 cm* Pi = 46.1cm (18.15 inch)

Cueball9802 · 10-19-2020, 04:43 AM

length is 14.6cm (5.75inch), circumference is 13.97cm (5.5 inch)
radius: 13.97cm/(2*Pi) = 2.22 cm
Base: (2.22cm)^2 * Pi = 15.53 cm^2
Volume: 15.53cm * 14.6 cm = 226.73cm^3
Surface Area: 13.97cm * 14.6cm = 203.96 cm^2

half radius length: 226.73cm^3/((1.11cm)^2 * Pi) = 58.57 cm
50cm long circumference :
new radius @ 50cm length : sqrrt(226.73cm^3/(Pi * 50cm) = 1.20 cm
new circumference : 1.20 cm* 2*Pi = 7.55cm

KindMistress · 10-20-2020, 05:31 AM

Quote:

Originally Posted by beof95

length is 15.4cm (6.06inch), circumference is 15.2cm (5.98 inch)
radius: 15.2cm/(2*Pi) = 2.26 cm
Base: (2.26cm)^2 * Pi = 16.04 cm^2
Volume: 16.04 cm^2 * 15.4 cm = 247.11cm^3
Surface Area: 15.2cm * 15.4cm = 234.08 cm^2

half radius length: 247.11cm^3/((1.13cm)^2 * Pi) = 61.6 cm
50cm long circumference :
new radius: 50 : x = 15.4 : 2.26 => x= 50*2.26/15.4 => x=7.34 cm
new circumference : 2* 7.34 cm* Pi = 46.1cm

You included all the formulas and formatted it in a really well readable way, I
appreciate that so much I will overlook the fact you forgot to convert to imperial

What I will not overlook is one of the formulas being wrong, but I'm sure you can correct your mistake

KindMistress · 10-20-2020, 05:32 AM

Quote:

Originally Posted by Cueball9802

length is 14.6cm (5.75inch), circumference is 13.97cm (5.5 inch)
radius: 13.97cm/(2*Pi) = 2.22 cm
Base: (2.22cm)^2 * Pi = 15.53 cm^2
Volume: 15.53cm * 14.6 cm = 226.73cm^3
Surface Area: 13.97cm * 14.6cm = 203.96 cm^2

half radius length: 226.73cm^3/((1.11cm)^2 * Pi) = 58.57 cm
50cm long circumference :
new radius @ 50cm length : sqrrt(226.73cm^3/(Pi * 50cm) = 1.20 cm
new circumference : 1.20 cm* 2*Pi = 7.55cm

Copying someone else's work isn't very nice, is it? One might even call it plagiarism.

beof95 · 10-20-2020, 08:52 AM

Quote:

Originally Posted by KindMistress

You included all the formulas and formatted it in a really well readable way, I
appreciate that so much I will overlook the fact you forgot to convert to imperial

What I will not overlook is one of the formulas being wrong, but I'm sure you can correct your mistake

I am so sorry for making a mistake, I hope I have fixed it now

KindMistress · 10-20-2020, 09:21 AM

Quote:

Originally Posted by beof95

I am so sorry for making a mistake, I hope I have fixed it now

Such a smart boy! Good job!

beof95 · 10-20-2020, 02:21 PM

Quote:

Originally Posted by KindMistress

Such a smart boy! Good job!

Is it wierd that I kind of feel proud now from the compliment...

KindMistress · 10-23-2020, 11:23 AM

Quote:

Originally Posted by beof95

Is it wierd that I kind of feel proud now from the compliment...

Not weird at all

being smart is something to feel proud about

allThingsNew · 10-23-2020, 12:47 PM

Hi Mistress!
Length l = 15.4 cm, circumference c = 14.1 cm
Radius r = 14.1/(2*pi) ≈ 2.24 cm

For simplicity sake we will let r = 2.24

Base area = pi*r^2≈ 15.76 cm^2
Volume = pi*r^2 * l ≈ 242.75 cm^3
Surface area = 2 * pi * r + 2*pi*r^2 ≈ 248.27 cm^2

If r' = r/2
242.75 = pi*r'*l
l = pi * l * (2.24/2)^2 ≈ 61.59 cm

If l = 50, assuming same proportions of length to circumference
l' / l = c'/c
c' = l' * c / l
c' = 45.78 cm

10-15-2020, 10:21 AM	#1
KindMistress Member Join Date: Oct 2020 Location: EU Posts: 67	Penis Math Problems Dare Hello, my darlings! Here's a simple mathematical dare for all the penis owners amongst us. Step 1: Measurements First, we will need to know the length of your hard penis and its circumference. If you know them already, move on to step 2, if not, it's time to measure up! Round to the nearest millimeter. Step 2: Math problems For this step, we will assume your rock hard cock is a perfect cylinder Using the length and circumference from step 1, I want you to calculate the following: radius and area of the base volume and surface area of the cylinder how long your dick would be if it had half the radius, but the same volume. the circumference of your schlong if it was 50cm long, but kept the same proportions it has now. These are all simple problems that each of us covered in school, so I have no doubt you will solve them easily. If not, feel free to Google the necessary formulas. And please, do not just post the results, either, I want you to show your work. Being a European lady, I want you to use the metric units in your calculations, but since we're all from all over the place, please convert the final result to imperial, too. There won't be any rewards for correct solutions (knowledge is its own reward, after all), but there might be punishments for mistakes. Oh, and one more thing: I want you to keep yourself hard the whole time while you're solving the problems. Hope to see your solutions soon, darlings! __________________ A kind domme with a cruel streak. Here to have fun with like minded folks. Like smart people, good manners and kinky perverts. Don't: PM unless you know you can (e.g. I said so in a thread), send me pics unless I ask, ask me for pics, ask me to be your mistress or to give you dares, ask for contact outside of this site. Ask me anything \| Write lines for me Last edited by KindMistress; 10-15-2020 at 10:23 AM.

10-15-2020, 11:09 AM	#2
trans_slave_mel Senior Member Join Date: Oct 2019 Location: Uk Posts: 172 Blog Entries: 2	OK, i'm 89mm long (3.5 inches) and 120mm circumference (4.7 inches) radius equals 19mm and area of the base equals 1134mm or 11.34cm volume equals 102cm and surface area of the cylinder equals 130cm how long your dick would be if it had half the radius, but the same volume. it would be 35.9cm the circumference of your schlong if it was 50cm long, but kept the same proportions it has now. Would it not be the same at 120mm or 4.7inches? __________________ Hi, i'm a m2f slave i'm 31 and bi-curious. Been out to family and friends for a year and a half now. loving life. Like: chastity, CBT, nipple torture, humiliation, bondage. Dislike: online exposure, blackmail, semi public, diapers. Limit: Anal, messy, full public. MY PM DARES My blackmail consent I am part of the Expose Forever Challenge, PM me "expose yourself" for a Picture of my tits. If I first answer after 2h+, then you may expose it anywhere.

10-18-2020, 12:03 PM	#5
KindMistress Member Join Date: Oct 2020 Location: EU Posts: 67	@trans_slave_mel I'll give you a chance to look at your solutions again. @frankmarano smart boy! __________________ A kind domme with a cruel streak. Here to have fun with like minded folks. Like smart people, good manners and kinky perverts. Don't: PM unless you know you can (e.g. I said so in a thread), send me pics unless I ask, ask me for pics, ask me to be your mistress or to give you dares, ask for contact outside of this site. Ask me anything \| Write lines for me

10-19-2020, 03:35 AM	#7
beof95 Distinguished Member Join Date: Aug 2014 Location: Under Mistresses heel Posts: 735 Blog Entries: 4	length is 15.4cm (6.06inch), circumference is 15.2cm (5.98 inch) radius: 15.2cm/(2Pi) = 2.26 cm* (0.89 inch) Base: (2.26cm)^2 * Pi = 16.04 cm^2 (6.31 inch^2) Volume: 16.04 cm^2 * 15.4 cm = 247.11cm^3 (97.29 inch^3) Surface Area: 15.2cm * 15.4cm + 2* 16.04 cm^2 = 266.16 cm^2 (104.79 inch^2) half radius length: 247.11cm^3/((1.13cm)^2 * Pi) = 61.6 cm (24.25 inch) 50cm long circumference : new radius: 50 : x = 15.4 : 2.26 => x= 502.26/15.4 => x=7.34 cm new circumference : 2 7.34 cm* Pi = 46.1cm (18.15 inch) __________________ 24 male slave 183cm/82kg/ Dcode likes: humiliation, control, degradation, pain, nipple play, sissy, pet play, tease, denial, rules, tpe, cnc,... Dislikes: pee, writing/typing lines, corner time, long discomfort, messy,... limits: family/friends, illegal, blood, scat, permanent, diepers, full public,... PM dares/RULES/TOYS Last edited by beof95; 10-20-2020 at 08:51 AM. Reason: Mistake

10-19-2020, 04:43 AM	#8
Cueball9802 Distinguished Member Join Date: Apr 2020 Location: United States Posts: 720 Blog Entries: 4	length is 14.6cm (5.75inch), circumference is 13.97cm (5.5 inch) radius: 13.97cm/(2Pi) = 2.22 cm Base: (2.22cm)^2 Pi = 15.53 cm^2 Volume: 15.53cm * 14.6 cm = 226.73cm^3 Surface Area: 13.97cm * 14.6cm = 203.96 cm^2 half radius length: 226.73cm^3/((1.11cm)^2 * Pi) = 58.57 cm 50cm long circumference : new radius @ 50cm length : sqrrt(226.73cm^3/(Pi * 50cm) = 1.20 cm new circumference : 1.20 cm* 2Pi = 7.55cm __________________ Loves, Likes, Dislikes, Hates, & Limits PM Dares* Check out my re-formatted dares Toys and other items Feel free to diaper check me, I'm now wearing 24/7. You can also check me here. PM dares are welcome too. Visit my hypno kink list, would you like to make me your hypno slave? M 50 KIik - cueball9802 Spoiler: Skype - trkruger9802

10-16-2020, 11:00 AM	#3
frankmarano Senior Member Join Date: Aug 2020 Posts: 147 Blog Entries: 1	Hello I am : 148 mm long (h) [5.82 inches] and circonference : 114 mm [4.488] Radius = 18.144 mm [0.72] A=1034.227 mm^2 [40.73] V=153065.596 mm^3 [6026.20] Asup=Ab+Al=1034.227+16872.311=18940.765mm^2 [745.69] h2=592 mm [23.30] if h3=500mm (50cm) --- circonf=385.135 mm [15.16]

10-16-2020, 11:01 AM	#4
frankmarano Senior Member Join Date: Aug 2020 Posts: 147 Blog Entries: 1	Hello I am : 148 mm long (h) [5.82 inches] and circonference : 114 mm [4.488] Radius = 18.144 mm [0.72] A=1034.227 mm^2 [40.73] V=153065.596 mm^3 [6026.20] Asup=Ab+Al=1034.227+16872.311=18940.765mm^2 [745.69] h2=592 mm [23.30] if h3=500mm (50cm) --- circonf=385.135 mm [15.16]

10-18-2020, 03:57 PM	#6
frankmarano Senior Member Join Date: Aug 2020 Posts: 147 Blog Entries: 1	Thank you mistress easy task lol

10-23-2020, 12:47 PM	#15
allThingsNew Junior Member Join Date: Sep 2019 Posts: 6	Hi Mistress! Length l = 15.4 cm, circumference c = 14.1 cm Radius r = 14.1/(2pi) ≈ 2.24 cm For simplicity sake we will let r = 2.24 Base area = pir^2≈ 15.76 cm^2 Volume = pir^2 l ≈ 242.75 cm^3 Surface area = 2 * pi * r + 2pir^2 ≈ 248.27 cm^2 If r' = r/2 242.75 = pir'l l = pi * l * (2.24/2)^2 ≈ 61.59 cm If l = 50, assuming same proportions of length to circumference l' / l = c'/c c' = l' * c / l c' = 45.78 cm