Question

Can anybody answer this with valid working and answer. Thanks!

Answer 1

SOLUTION :-

Area of required region = Area of circle - Area of triangle

Area of required region =

$\sf \pi {r}^{2} - \frac{1}{2} (base) \times (height)$

$= \sf \pi {(19)}^{2} - \frac{1}{2} (18 + 18) \times (35)$

$= \sf 3.14 (361) - \frac{1}{2} (36) \times (35)$

$= 1133.54 \: - 630$

$\sf= 503.54 \: \: {m}^{2}$

$\sf = 504 \: \: {m }^{2} \: (approx)$