Mathematics, 02.04.2021 18:30, eve2055

The given expression is 3.14(rs + r2) r=3 s=5 i got 3.14(35 + 32)
please tell me if im right or wrong and how to solve thanks

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The given expression is 3.14(rs + r2) r=3 s=5 i got 3.14(35 + 32)
please tell me if im right...