Question

find the area of the circle. use 3.14 for the value of π. round your answer to the nearest tenth.
a. 201 mi²
b. 12866.6 mi²
c. 804 mi²
d. 226.9 mi²

Explanation:

Step1: Recall area formula

The formula for the area of a circle is $A = \pi r^{2}$, where $r$ is the radius.

Step2: Identify radius value

The radius $r = 8$ mi.

Step3: Substitute and calculate

Substitute $r = 8$ and $\pi=3.14$ into the formula: $A=3.14\times8^{2}=3.14\times64 = 200.96$ mi².

Step4: Round the result

Rounding 200.96 to the nearest tenth gives 201.0 mi², which is 201 mi² when we don't write the trailing 0 after the decimal for whole - number values in this context.

Answer:

A. 201 mi²