Question

oabc is a square inscribed in a quadrant opbq if OA= 20 cm find the area of the shaded region​

Answer 1

Answer:

if side of square is a(let)

diagonal is a√2= radius of quarter circle(r)

area of QOP= pi*r^2/4 , r=a√2

So area of QOP= pi*a*a/2

area of shaded region= (pi*a^2/2)-a^2

put a= 20 cm