Question

Find the surface area and volume of the figure below. Round to the hundredths (2decimal places) if necessary.Use it instead of 3.14 for calculations.

Answer 1

Find the surface area of the sphere

A = 4 * pi * r^2

pi = 3.14

circumference = 34

34 = 2 * 3.14 * r

17 = 3.14 * r

r = 5.41

A = 4 * 3.14 * 5.41

A = 67.95 m^2

Volume is found with

v = 4/3 * 3.14 * r^3

v = 4/3 * 3.14 * 5.41^3

v = 4/3 * 3.14 * 158.34

v = 662.92 m^3