Question

A water sprinkler has a range of 5 meters as shown. The jet of water from the sprinkler sweeps out at an angle of 85° as the nozzle turns. What is the area watered by the sprinkler? Use the value `pi` = 3.14, and round your answer to one decimal place.

Answer 1

Answer

18.5 m²

Explanation

The figure is a sector of angle 85° and of radius 5 m.

The area = θ/360 × π × r²

                = 85/360 × 3.14 × 5²

                = 18.5347

  The answer to one decimal place is 18.5 m²