Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations). PLEASE HELP FOR BOTH OF THEM

Find the area of the shaded regions Give your answer as a completely simplified exact value in terms of π no approximations PLEASE HELP FOR BOTH OF THEM class=
Find the area of the shaded regions Give your answer as a completely simplified exact value in terms of π no approximations PLEASE HELP FOR BOTH OF THEM class=