For the first is 3864
The second is 1320
A=3.14(which is pie) x 20.5^2
A=420x pie
A=1320
For the third is 2544
3864-1320=2544
Sorry if this is wrong too.
11 1/4 or 11.25 is the answer
Answer:
work is shown and pictured
Answer:
3/2 g.oogle if you want the explanation of your work.