Answer:
A = 78.55
Step-by-step explanation:
A = nr^2
substitute the n and r values
A = 3.142(5)^2
Use PEMDAS
Parenthesis Exponents Multiply Divide Add Subtract
so the first step is exponents
5^2 is 25
A = 3.142(25)
Multiply
A = 78.55
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