Question

Part A The circumference of a dinner plate is 19.5 inches. ​ ​What is its radius? ( use π=3.14 ) Round your answer to the nearest hundredth. inches.

Answer 1

Circumference = PI x diameter

FInd the diamter:

19.5 = 3.14 x diameter

Divide both sides by 3.14:

Diameter = 19.5 / 3.14

Diameter = 6.21019108 inches.

Radius = diameter / 2

Radius = 6.21019108 / 2

Radius = 3.10509554 inches

Rounded to the nearest hundredth = 3.11 inches.