Surface Area of Spheres Practice

Question

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Question
Find the surface area of a sphere with a radius of 3.6 ft. Use 3.14 for pi. Round your answer to the nearest hundredth, if necessary.(1 point)
The surface area is
ft.2

Answer 1

The surface area can be calculated using the formula for the surface area of a sphere:

Surface Area = 4πr^2

Given a radius of 3.6 ft, we can substitute this value into the formula:

Surface Area = 4 * 3.14 * (3.6)^2

Surface Area = 4 * 3.14 * 12.96

Surface Area = 162.86 ft^2

Rounding to the nearest hundredth, the surface area of the sphere is 162.86 ft^2.

Answer 2

wrong

Answer 3

I apologize for the incorrect answer.

The correct calculation for the surface area of a sphere with a radius of 3.6 ft is:

Surface Area = 4 * π * (3.6)^2
= 4 * 3.14 * 12.96
= 162.86 ft^2

Therefore, the surface area of the sphere is 162.86 ft^2.

Answer 4

the answer is not 162.86 ft^2

Answer 5

I apologize for the mistake in my previous response.

Let's calculate the surface area correctly.

Surface Area of a sphere = 4πr^2

Given that the radius is 3.6 ft and using 3.14 for pi, we can substitute these values into the formula:

Surface Area = 4 * 3.14 * (3.6)^2

Surface Area = 4 * 3.14 * 12.96

Surface Area ≈ 163.07 ft^2

Therefore, the surface area of the sphere with a radius of 3.6 ft is approximately 163.07 ft^2.