Question

the speedometer needle a car is 2 inches long. the needle sweeps out 130 degrees sector during its acceleration from 0 to 60 miles per hour. what is the area of this sector?

Answer 1

4.54 in2

Explanation:

We will determine the area by using this formula:

A = m/360 * πr2

Where, the central angle is m° and the radius is r.

Here given,

r = 2

m∠C = 130°

So,

A = 130/360 * π2*2 = 4.54 in2

So, the area of the sector is 4.54 in2.