Question

Find the area of a sector with a central angle of 1/2 pi and a radius of 11.3

Answer 1

First, let's find the length of an arc:

`L=\text{r}\cdot\theta=11.3\cdot(\pi)/(2)=(113\pi)/(20)`

Therefore, the area is:

`A=(rL)/(2)\approx100.3`