Question

Find the surface area of a sphere with a radius of 100 yd. Express your answer in terms of π.
a. 4,000π yd2
b. 40,000π yd2
c. 10,000π yd2
d. 20,000π yd2

Answer 1

The surface area of a sphere is given by the following relationship:
 A = 4πR ^ 2
 Where,
 R: radio
 We then have to replace the radio value we have:
 A = 4π (100) ^ 2
 A = 40000π yd ^ 2
 Answer:
 The surface area of a sphere with a radius of 100 yd is: 
 b. 40,000π yd2