Question

lesson 6: circles calculating circumference and area which of the following is the area of a circle with a radius of 3 cm? use 3.14 for π. a. 113.04 cm squared b. 9.42 cm squared c. 28.26 cm squared d. 29.05 cm squared

Explanation:

Step1: Recall area formula

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

Step2: Substitute values

Given $r = 3$ cm and $\pi=3.14$, we substitute into the formula: $A=3.14\times3^{2}$.

Step3: Calculate result

First, $3^{2}=9$, then $3.14\times9 = 28.26$ $cm^{2}$.

Answer:

C. 28.26 cm squared