Question

What is the are of the shaded region?

Answer 1

Shaded area = Area of circle - 2(area of one triangle)

The circle has radius 5 cm, so its area is
`\pi 5^2=25\pi`

The triangle has a base of 6 cm. Two of its legs coincide with the radius of the circle, which means the height of the triangle must be 5 - 1 = 4 cm. So one triangle's area would be
`\frac12*6*4=12`.

Shaded area =
`25\pi-2(12)=25\pi-24`.