Question

Find the approximate area of the shaded region below, consisting of a right triangle with a circle cut out of it. Use 3.14 as an approximation for pi.

An image shows a right triangle with a circle cut out of it. The legs that make up the right triangle are both 60 meters. The diameter of the circle cut out is 20 meters. All of the triangle is shaded, except where the circle is cut out.

A.544 square meters

B.1,486 square meters

C.3,286 square meters

D.314 square meters

Answer 1

B. 1,486 metres

Explanation:

Find the area of the triangle.

60 x 60 = 3600

3600 ÷ 2 = 1800

Area of triangle = 1800 metres

Area of unshaded circle is approximately 314 metres square using pi

1800 - 314 = 1486

1486 metres square is the approximate area of the shaded region.