r = 4 in
Area = πr^2 = 3.14 * 4^2 = 3.14 * 16 = 50.24 square inches
r = 2 in
Area = πr^2 = 3.14 * 2^2 = 3.14 * 4 = 12.56 square inches
d = 2 in (radius = d/2 = 2/2 = 1 in)
Area = πr^2 = 3.14 * 1^2 = 3.14 square inches
r = 8 in
Area = πr^2 = 3.14 * 8^2 = 3.14 * 64 = 200.96 square inches
d = 12 in (radius = d/2 = 12/2 = 6 in)
Area = πr^2 = 3.14 * 6^2 = 3.14 * 36 = 113.04 square inches
Find the area of each circle with the given radius or diameter. Use 3.14 for pi.
r =4 in
r =2 in
d = 2 in
r = 8
d = 12 in
1 answer