If a windshield wiper covers an area of approximately 200 square inches when it rotates at an angle of 84°, find the length of the wiper to the nearest tenth of an inch. The length of the wiper is approximately inches.

Answer : 16.517780

So round up 16.6

Wow

Formula A= 0/360 • # • r^2

200= 84/360 • # • R^2

Solve for R

R^2 = 200 • 360 / 84 #

R^2 600/ 7#

# mean pi

R= | 600/7r

Simply

R = | 600/ 7#

Simply with | 600 to 20| 15

R= 20| 15 / |7#

Multiple by distributive

R= 20| 15 / /7 / #

= 16.517780

Iagree that is the answer to the question