Question

question 13 of 25
to the nearest hundredth, what is the area of a circle with a radius of 3 units?
a. 28.27 square units
b. 29.61 square units
c. 9.42 square units
d. 18.85 square units

Explanation:

Step1: Recall area formula

$A = \pi r^{2}$

Step2: Substitute radius value

$A=\pi\times(3)^{2}=9\pi$

Step3: Calculate and round

$A\approx9\times 3.14159 = 28.27431\approx28.27$ (rounded to nearest hundredth)

Answer:

A. 28.27 square units