Question

The diameter of one of the lights in a stoplight is 12 inches.

What is the area of the green light?

Use 3.14 as an approximation for π. Round your answer to the nearest tenth

The answers: 113.0 in, 113.0 in2, 452.2 in, 452.2 in2

Answer 1

113.0 in

Explanation:

`a = \pi \: r {}^(2) \\ \\ = 3.14( (12)/(2) ) {}^(2) \\ \\ a = 113.0 \: in {}^(2)`