Hi can someone please help me? :( im not sure where im going wrong. ty!!

"Find the area of the shaded regions below. Give your answer as a completely simplified exact value in terms of π (no approximations)."

The triangle ABC is a right angled triangle , right angled at C because it is the angle subtended by the diameter

Now OA = OB = OC = 4 cm (radii)

AB = OA + OB = 8 cm

By pythagoras theorem ,

AC =4

shade region area = area of semicircle - area of triangle

= - 1/2 × base × height

=1/2 × 16 - 1/2 × 4 ×

=8 - 8

=8()

step-by-step explanation: