Question

LOOK AT THE PICTURE BLOW

Answer 1

Answer:

A = 31.8 cm2

Step-by-step explanation:

Yhe formula:

$A=\frac{\pi r^{2}(Central.Angle) }{360}$

$r=18/2=9cm$

central angle = (180-135)° = 45°

$A=\frac{\pi ((9)^{2}(45) }{360} = \frac{\pi (81)(45)}{360} = 10.125\pi cm^{2}$

$A=31.8cm^{2}$

Hope this helps