Question

instructions
choose the best answer. if necessary, use the paper you were given.
question
a circle has a radius of 15 inches. what is the area, in square inches,
of this circle?
(the area of a circle with a radius of r is equal to \\( \pi r ^ { 2 } \\).)
\\( \bigcirc 15 \pi \\)
\\( \bigcirc 30 \pi \\)
\\( \bigcirc 225 \pi \\)
\\( \bigcirc 900 \pi \\)

Explanation:

Step1: Substitute the radius into the formula

The formula for the area of a circle is \(A = \pi r^{2}\), and \(r = 15\). So \(A=\pi\times(15)^{2}\).

Step2: Calculate the value of \(15^{2}\)

\(15\times15 = 225\). Then \(A = 225\pi\).

Answer:

\(225\pi\) (the third option)