Question

find the length of circle r=7cm which sustain

Answer 1

length =
$\frac{ \alpha }{360} \times 2\pi \: r$

= 9.16 app.

area =
$\frac{ \alpha }{360} \times \pi {r}^{2}$

= 32.07 cm² (app.)

Answer 2

answer is 32.07 approximately .