CPM Homework Help : MC2 Problem 9-112

Find the area and circumference of a circle with a diameter of $14.4$ inches. Round your answer to the nearest hundredth.

Hint:

Area: $π\cdot{r^2}$

Circumference: $π · 2r$

Help:

Find the radius based on the given diameter and substitute in for $r$ to solve for the area and circumference.

Answer:

^{$A = π (7.2)^2 ≈ 162.86$ in $^2$}What would the circumference be?