Question

enter the correct answer.
calculate the area of the circle.
formula: ( a=pi r^{2} )
use 3.14 for pi.
( a=? mathrm{cm}^{2} )
round to the nearest tenth.

Explanation:

Step1: Substitute the radius into the formula

Given \( r = 14\) cm and \( \pi=3.14\), the formula for the area of a circle is \( A=\pi r^{2}\). Substitute \( r = 14\) into the formula: \( A = 3.14\times14^{2}\).

Step2: Calculate \(14^{2}\)

\(14^{2}=14\times14 = 196\). So the formula becomes \( A=3.14\times196\).

Step3: Perform the multiplication

\(3.14\times196=(3 + 0.14)\times196=3\times196+0.14\times196=588+27.44 = 615.44\).

Answer:

\(615.4\)