Question

A sector is cut from a circle radius 42cm if the central angle of the sector is 150° find area of sector

Answer 1

Hey friend, Here is your answer-
Let the central angle is theta.
Area of sector =
$\frac{theta}{360} \times \pi {r}^{2}$
$= \frac{150}{360} \times 3.14 \times 42 \times 42 \\ = \frac{5}{12 } \times 3.14 \times 1764 \\ = 5 \times 3.14 \times 147 \\ = 2307.90 \: {cm}^{2}$
Hope it will help you