Answer:
radius r = 10 in
diameter d = 20 in
circumference C = 62.8318531 in
area A = 314.159265 in2
In Terms of Pi π
circumference C = 20 π in
area A = 100 π in2
Step-by-step explanation:
Solutions
diameterd=2r
d=2×10
d=20
circumferenceC=2πr
C=2×π×10
C=20π
C=62.8318531
areaA=πr2
A=π×102
A=100π
A=314.159265
