Question

Find the area of the circle with the following dimension diameter = 4 cm

Answer 1

Answer:

$A = 12.56 cm^{2}$

Step-by-step explanation:

When you want to find area out of diameter. These are the steps you follow:

1. Convert diameter to radius

2. Solve for area

First step:

When you need to convert diameter to radius, you just need to divide by 2

$d = 4cm / 2cm$

$==> 2cm$

Second step:

Use formula  $A = \pi * r^{2}$

A = $\pi * 2cm^2$

A = $\pi * 4cm$

A= $12.56cm$