Question

the diameter of a circle is 12 inches. what is the area?
$d=12$ in
give the exact answer in simplest form.
square inches

Explanation:

Step1: Calculate the circle's radius

Radius $r = \frac{d}{2} = \frac{12}{2} = 6$ inches

Step2: Apply circle area formula

Area $A = \pi r^2 = \pi \times 6^2$

Step3: Simplify the expression

$A = \pi \times 36 = 36\pi$

Answer:

$36\pi$ square inches