Question

find the circumference and area of this figure.
c = ? units
a = units²
use π = 3.14
round your answer to the nearest hundredth.

Explanation:

Step1: Find the radius of the circle

From the graph, the distance between the two points (radius) is $r = 3$ units.

Step2: Calculate the circumference

Use the formula $C = 2\pi r$. Substitute $r = 3$ and $\pi=3.14$.
$$C = 2\times3.14\times3= 18.84$$

Step3: Calculate the area

Use the formula $A=\pi r^{2}$. Substitute $r = 3$ and $\pi = 3.14$.
$$A=3.14\times3^{2}=3.14\times9 = 28.26$$

Answer:

$C = 18.84$ units, $A = 28.26$ units²