Answer:
12.56 in²
Step-by-step explanation:
Area = πr²
Substitute for pi.
A = 3.14 × r²
The diameter is 4. We divide the diameter by 2 to get the radius.
4 ÷ 2 = 2
Substitute for the radius.
A = 3.14 × 2²
Solve
A = 3.14 × 4 = 12.56 in²
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