Question

Pleaseee help me. ty!

Answer 1

Step-by-step explanation:

take a as the angle. x = 1.5 radians

Area of Sector in the circle(including shaded region)

$= \frac{1}{2}r {}^{2} x \\ = \frac{1}{2} (10) {}^{2} (1.5) \\ = 75units {}^{2}$

Area of Triangle =

$\frac{1}{2} r {}^{2} \sin(x) \\ = \frac{1}{2} (10) {}^{2} \sin(1.5) \\ = 49.87475units {}^{2}$

Area of shaded region = Area of Sector in Circle - Area of Triangle

$= 75 - 49.87475 \\ = 25.12525units {}^{2}$