4*pi*r2. because surface area is equal to circumference of circle.
Circumference = π * Diameter
The diameter joins together the circumference of the sphere and it passes through the center of the sphere.
The circumference.
The angles around the circumference of a sphere add up to 360 degrees.
4*pi*r2. because surface area is equal to circumference of circle.
1/2 diameter or the circumference/pi/2
You can divide this problem into two steps: 1) Divide the circumference by (2 x pi) to get the radius. 2) Use this radius in the standard formula for the surface area of the sphere.
A sphere does not have a perimeter. It can have a diameter a circumference or a surface area (or volume but that isn't discussed here.The diameter of a sphere is two times the radius (r): so the formula would be2r...or...2 x rThe circumference (C) of a sphere is equal to 6.2832 times the Radius, where 6.2832 is twice Pi (): so the formula would beC = 2r...or...C = 2 x x rThe area of a sphere is equal to the Square of the Radius of the sphere multiplied by 12.566 (4 times ): so the formula would be4 * * R * R
The circumference of the sphere is ~62.831 inches.
Well, first of all, it has to be a circle or a sphere, otherwise it's perimeter, not circumference. But if your object is a circle or a sphere, the formula is C=pi x diameter. So the circumference of your object is 5pi
The area of a sphere is equal to its circumference times its diameter.There are a variety of ways to work out this formula, most of them involving calculus.(See the links for the volume of a sphere).
The great circle has circumference 40pi and we know circumference is 2pixr so 20 is the radius of the sphere. Now use this and the formula that surface area is 4pir^2 so the surface are is 4pi(20)^2. or pi(1600)
Circumference = π * Diameter
Diameter is distance across a circle or sphere, circumference is the distance around a circle or sphere
The radius of a sphere joins the center of the sphere to its circumference.
Yes because a sphere has a circumference and a diameter.