Question

Use the radius you found in part I (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. Show your work and round your answer to the nearest tenth.

The surface area of a sphere: SA = 4πr^2

Self note: 3.8.4

Answer 1

9021.1

Explanation:

The surface area of a sphere: SA = 4πr²

where radius, r = 26.8 cm

π = 3.14

put r in the formula above

SA = 4 × 3.14 × 26.8²

= 4 × 3.14 × 718.24

= 9021.094

Rounding to nearest tenth

9021.1