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icang [17]
3 years ago
8

HELP !!!!!! FAST!!!!!

Mathematics
1 answer:
Naya [18.7K]3 years ago
5 0
The answer is 162 81pi/2
Hope this helps!
 
the area is (1/2) x pix 9^2 = 81pi over 218.9=162162-81pi over 2
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