154 in2
The formula for the surface area of a sphere is 4πr^2, where r is the radius. Since the circumference is 28 in, we can find the radius by dividing the circumference by 2π:
28 / (2π) ≈ 4.45 in
Then we can plug the radius back into the surface area formula:
Surface area = 4π(4.45)^2 ≈ 154 in2
Therefore, the correct answer is 154 in2.
A sphere has a circumference of 28 in. Use the circumference to find the surface area of the sphere to the nearest inch. (1 point) Responses 154 in22154 in2 250 in22250 in2 6082 in226082 in2 9852 in2
1 answer
1 answer