Question

The circumference of the hub cap of a tire is 80.51 centimeters. Find the area of this hub cap. Use 3.14 for π.

Answer 1

516 cm²

Explanation:

hubcap is circular

Circumference = π X D (D = diameter = 2 X radius)

80.51 = π X D

D = 80.51/π

= 80.51 / 3.14.

Radius = 0.5 X ( 80.51 / 3.14)

Area of circle = π r ²

= (3.14) [0.5 X ( 80.51 / 3.14)]²

= 516 cm²