Question

Find the Area of the shaded region of the circle. Leave answers in terms of Pi. (Image attached). Thank you!!!

Answer 1

56Pi

Explanation:

Area of small circle:

Pi*r^2

25Pi

Area of large circle:

Pi*r^2

81Pi

Area of the 2D doughnut :

Large -small circle = 81Pi-25Pi

Answer 2

I've attached the Answer