Question
The surface area of a sphere is 7.84pi ft^2. What radius of this sphere?
Answers
Answered by
GPT 3.5
The surface area of a sphere is given by the formula:
Surface Area = 4πr^2
where r is the radius of the sphere.
Given that the surface area is 7.84π ft^2, we can set up the equation:
4πr^2 = 7.84π
Dividing both sides by 4π, we get:
r^2 = 7.84/4
r^2 = 1.96
Taking the square root of both sides, we find:
r = √1.96 = 1.4
Therefore, the radius of the sphere is 1.4 ft.
Surface Area = 4πr^2
where r is the radius of the sphere.
Given that the surface area is 7.84π ft^2, we can set up the equation:
4πr^2 = 7.84π
Dividing both sides by 4π, we get:
r^2 = 7.84/4
r^2 = 1.96
Taking the square root of both sides, we find:
r = √1.96 = 1.4
Therefore, the radius of the sphere is 1.4 ft.
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