Question

a = π·9². the area of the circle is about square inches.

Explanation:

Step1: Recall area - formula for a circle

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

Step2: Identify the radius value

Given that $r = 9$ inches.

Step3: Calculate the area

Substitute $r = 9$ into the formula: $A=\pi\times9^{2}=\pi\times81 = 81\pi\approx81\times3.14 = 254.34$ square - inches.

Answer:

$254.34$