Which of the following is the correct formula for finding the area of a circle?
A. A=πr2
B. A=πd
C. A=2πr
D. A=C2÷4πA=πd2
1 answer
A. A=πr2
A. A=πr2
B. A=πd
C. A=2πr
D. A=C2÷4πA=πd2
1 answer