Question

Find the area of the shaded region. The gray ones with grains are the shaded regions. ​

Answer 1

1) 69.5

2) 678.6

Explanation:

pi3^2=28.27*9=254.5 18*18=324-254.5=69.5

pi24^2=1809.6*.5=904.8 pi6^2=113.1*.5=56.55*4=226.2 904.8-226.2=678.6