Question

find the circumference and the area of the circle with the radius 9m use the value 3.14 for it do not round your answer be sure to include the correct units for your answer

Answer 1

Explanation:

The circumference and the are of a circle with radius r

are:

$\begin{gathered} A=\pi r^2 \\ C=2\pi r \end{gathered}$

If we use pi = 3.14 and the radius is 9m:

$A=3.14\cdot(9m)^2=3.14\cdot81m^2=254.34m^2$$C=2\cdot3.14\cdot9m=56.52m$

Answers:

• Area: ,254.34 m²

,

• Circumference: ,56.52 m