Mathematics

Problem

Two identical circles of radius

10\,\text{cm}

overlap so that the centre of each circle lies on the circumference of the other. Find the area of their overlapping region. (Take

\pi = 3.14

and

\sin 60^{\circ} = 0.866

.) a)

61.4\,\text{cm}^2

9.0\,\text{cm}^2

18.1\,\text{cm}^2

43.3\,\text{cm}^2