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Why is pi radius multiplied by 4 when finding the surface area of a sphere?
Wiki User
∙ 13y ago
First of all, that should be "4 pi radius-squared" to find the surface area of a sphere.
It's not too hard to show why, but first, you have to be comfortable enough with calculus
that the idea of a triple integral doesn't scare you. We're pretty sure that the question
can't be answered without spending a few minutes working with one of those.
Wiki User
∙ 13y ago
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Formula for finding volume and area of sphere?
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
What is the surface are of a sphere with radius 2?
The surface area of a sphere with a radius of 2 is about 50.27 units2
Given a sphere with radius r what does the formula represent?
Do you mean volume or surface area? volume = 4/3 x pi x r^3 (four divided by three, multiplied by pi, multiplied by radius cubed). surface area = 4 x pi x r^2 (four multiplied by pi, multiplied by radius squared).
Suppose the sphere below with radius r has a surface area equal to 50 units2 Find the surface area of the sphere with twice the radius?
The surface area of the sphere with the radius doubled is 200 units2.---> Confirmed
What is the area of a sphere when the radius is 7?
The surface area of a sphere with a radius of 7 is about 615.8 units2
What is the radius of a sphere that has a surface area of 1742400 squre ft?
Finding the radius of a Sphere by using the surface area is a multi-step mathematical equation. The radius (r) of a sphere with a surface area of 1742400ft is 372.365ft.
Find the volume of a sphere?
The formula for the volume of a sphere is based on the radius of the sphere. It is equal to 4/3 multiplied by pi, multiplied by the radius cubed.
Formula for finding volume and area of sphere?
Volume = 4/3 * pi * radius * radius * radius Surface Area = 4 * pi * radius * radius
What is the surface are of a sphere with a radius of 4.75?
The surface area of a sphere with a radius of 4.75 is about 283.5 units2
What is the surface area of sphere with radius 13ft?
The surface area of a sphere with a radius of 13ft is about 2,123.7ft2
What is the surface are of a sphere with radius 2?
The surface area of a sphere with a radius of 2 is about 50.27 units2
Given a sphere with radius r the formula 4r2 gives?
If you mean 4*pi*r^2 then it is the formula for finding the surface area of a sphere
'What is the surface area of a sphere with a radius of 5 m?
The surface area of a sphere with a radius of 5m is 314.2m2
If the radius of a sphere doubles does its surface area double?
The surface of a sphere is: A=4? r2 From this, the surface are changes as the square of the radius. It does not change linearly.
Given a sphere with radius r what does the formula represent?
Do you mean volume or surface area? volume = 4/3 x pi x r^3 (four divided by three, multiplied by pi, multiplied by radius cubed). surface area = 4 x pi x r^2 (four multiplied by pi, multiplied by radius squared).
What is the surface area of a sphere that has a radius of 10?
The surface area of a sphere that has a radius of 10 is: 1,260 square units.
What is the surface area of a sphere with radius 6?
The surface area of a sphere with radius 6 is: 452 square units.
