Answer :
. . .the correct number of significant figures is 3
A = πr²
A = π(3.07 in)² = 29.594186
however with only 3 significant figures
answer is: A = 29.6 in²
A = πr²
A = π(3.07 in)² = 29.594186
however with only 3 significant figures
answer is: A = 29.6 in²