Please help me solve this question in detail; I really do not understand it. Thank you so much, and have a great day!

consider the polar curves r; = 4 sin 9 and r2 = 2 2 sin 9 for O S 6' S 21:. 9) Setup an integral expression for the area of the entire common interior region between in and r; and evaluate the expression using the calculator. 10) Setup an integral expression for the perimeter of the region inside 3'; but outside n and evaluate the expression using the calculator