Answer:
117.8
Step-by-step explanation:
area= 1/2 * r^2 * theta where theta is the angle in radian
theta = 135/180 *pi
area= 1/2 *
≈ 117.8 cm²
A = ∝·π·r²/360
= 135°·3.14·100cm²/360
= 42390/360
= 117.75 cm²
