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Rene Terstegen · Answer 1 · 2020-03-23T07:39:06+0000

Answer: Number 10: Choice A

Step-by-step explanation: (3.14)r^2

choice a: 22/2= 11=r

11^2=121(3.14)

=379.94

Choice b: 9/2=4.5

4.5^2= 20.25(3.14)

=63.585