I might have used a long method to answer the question, but here's how I solved it:-
Area of Semi-circle = Area of Entire Circle / 2
Area of Entire Circle = πr^2 --> π*(π/2)^2 --> π*(π^2/4) --> π^3/4
Area of Semi-circle = π^3/4 / 2 --> π^3/4*2 --> π^3/8
Area of Inscribed Circle = πr^2 --> π*(π/4)^2 --> π*(π^2/16) --> π^3/16
Area not covered by the Inscribed Circle
= Area of Semi-circle - Area of Inscribed Circle
= π^3/8 - π^3/16
Area of Semi-circle / Area not covered by the Inscribed Circle
= π^3/8 / π^3/16
= π^3/8 * 16/π^3
I have laid down each step in detail as I am new with typing math in text so tried my best not to good up
I hope this is also a right way to solve the problem.
If my mind can conceive it, and my heart can believe it, I know I can achieve it.