Use 3.14 for π to estimate the area of a circle. The diameter is 24.4. Round your answer to the nearest hundredth if necessary.

Answer 1

Area = π(12.2)^2
= appr 3.14(148.84) = appr 467.36

more accurate answer = π(12.2)^2 = appr 467.59

rather silly to ask for nearest hundredth after asking for approximation.

Answer 2

1. A 22.0 cm
2. D 113.0ft2
3. A 15.9 mm
4. C 1,384.7mm2