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The formula is simply this: **C = (pi)d**. In this equation, "c" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi, which is an approximation of 3.14.

Posted on Jan 30, 2014

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Just use the formula: Radius = Circumference/2?. It does not matter what model calculator you have. Good luck!

Nov 10, 2014 | Office Equipment & Supplies

If you would like to know the circumference of a 15" diameter circle this is the formula:

circumference = radius x 2 x pi

circumference = diameter x pi

in our case:

circumference = 15" x 3,14

circumference = 47 ,1" (that's 119,634 cm)

circumference = radius x 2 x pi

circumference = diameter x pi

in our case:

circumference = 15" x 3,14

circumference = 47 ,1" (that's 119,634 cm)

May 06, 2014 | Cars & Trucks

What do you mean? The circumference of a circle having a radius or 15"? If so, it will be* [2 x 3.14 x 15] = 94.2"*.

Since circumference of a circle = 2 x (pai) x r (r = radius)

Gopakumar Gopalan Google

Since circumference of a circle = 2 x (pai) x r (r = radius)

Gopakumar Gopalan Google

May 06, 2014 | Computers & Internet

The circumference of a circle is given by the expression

Circumference= 2* PI* Radius of circle

**C=2*Pi*R**

The area is given by

**Area of a disk with radius R** **= Pi* R*R** or **PI*R^2**

**Area= PI*R^2**

Circumference= 2* PI* Radius of circle

The area is given by

Mar 11, 2014 | SoftMath Algebrator - Algebra Homework...

Using the formula: C = Pi * Diameter ..... where Diameter = 2* radius

Your circumference is Pi x 2 x 10 2/7 ft

Your circumference is Pi x 2 x 10 2/7 ft

Mar 03, 2014 | Computers & Internet

The formula for circumference of a circle is c=2*pi*r, using 3.14 for pi and 3.2 inches for the radius.

c=2 * 3.14 * 3.2

Good luck.

Paul

c=2 * 3.14 * 3.2

Good luck.

Paul

Feb 17, 2014 | Computers & Internet

d/2=r, circumference = 2 x pi x r , pi = 3.14159, so circumference = 2 x 3.14159 x (d/2)

Jan 08, 2014 | Computers & Internet

The circumference of a circle is C=2 * pi * r or C= pi * d.

What do we know? C=47.1 and pi.

What are we trying to calculate? d

Put what we know in the equation and solve for d.

47.1 = pi * d

To isolate d, we have to divide both sides by pi.

47.1

------ = d

pi

I get 14.99' or approximately 15' as the diameter.

Good luck,

Paul

What do we know? C=47.1 and pi.

What are we trying to calculate? d

Put what we know in the equation and solve for d.

47.1 = pi * d

To isolate d, we have to divide both sides by pi.

47.1

------ = d

pi

I get 14.99' or approximately 15' as the diameter.

Good luck,

Paul

Apr 17, 2013 | Office Equipment & Supplies

what class are you in? Is this your home work?
Anyway, You should know that

Circumference = 2 x pie x radius therefore radius - circumference / 2 x pie in this case radius = 30 x 7 / 2 x 22 = 210 / 44 Now you can calculate that fraction.

Circumference = 2 x pie x radius therefore radius - circumference / 2 x pie in this case radius = 30 x 7 / 2 x 22 = 210 / 44 Now you can calculate that fraction.

Nov 17, 2009 | Gateway FPD1975W 19" LCD Monitor

Hello my friend, I am Jonas I work as a programmer in some various programming languages. Here try this code:

This program is design to output the Diameter, circumference, and area given a radius of a circle. #include <iostream.h> int main() { int radius, diameter, circumference, area, pi; cout << " Enter the radius of a circle\n"; cin >> radius; pi = 3.14159; diameter = 2 * radius; circumference = 2 * pi * radius; area = pi * (radius)^2; cout << "Diameter formula executing.....(2 x r)\n"; cout << "Diameter is " << diameter << endl; cout << "circumference formula executing.....(2 x pi x r)\n"; cout << "circumference is " << circumference << endl; cout << "area formula executing......(pi x [r x r])\n"; cout << "area is " << area << endl; return 0; }

Also if you need tutorial you can visit this site Learning C++ .Hope this solution will able to help your problem solved. If you need more assistance just reply to this post or send me a mail at [email protected] you and Godbless.

This program is design to output the Diameter, circumference, and area given a radius of a circle. #include <iostream.h> int main() { int radius, diameter, circumference, area, pi; cout << " Enter the radius of a circle\n"; cin >> radius; pi = 3.14159; diameter = 2 * radius; circumference = 2 * pi * radius; area = pi * (radius)^2; cout << "Diameter formula executing.....(2 x r)\n"; cout << "Diameter is " << diameter << endl; cout << "circumference formula executing.....(2 x pi x r)\n"; cout << "circumference is " << circumference << endl; cout << "area formula executing......(pi x [r x r])\n"; cout << "area is " << area << endl; return 0; }

Also if you need tutorial you can visit this site Learning C++ .Hope this solution will able to help your problem solved. If you need more assistance just reply to this post or send me a mail at [email protected] you and Godbless.

Jul 09, 2009 | Computers & Internet

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