ABC is the segment of a circle centre O this segment is enclosed in a rectangle APQC given that AC= 32 cm and AP = 8 cm calculate

Question

a. the radius of the circle
b. the angle AOC in radians
c. the area of the shades region

Answer 1

AC and AP are two sides of the rectangle.
The circle's diameter is the diagonal AQ = √(8^2+32^2) = 8√17

If 2θ = ∡AOC, then tanθ = 4
θ = 1.3258
So, ∡AOC = 2.6516

No idea what is shaded, but it can't be that hard to figure out.
If stuck, google area of circular segment.