Question

circumference =
area =

Explanation:

Step1: Calculate the circumference

The formula for the circumference of a circle is \(C = 2\pi r\). Given \(r = 1\) in, substitute into the formula: \(C=2\pi\times1 = 2\pi\approx 2\times3.14 = 6.28\) in.

Step2: Calculate the area

The formula for the area of a circle is \(A=\pi r^{2}\). Given \(r = 1\) in, substitute into the formula: \(A=\pi\times1^{2}=\pi\approx3.14\) in².

Answer:

circumference = \(6.28\) in, area = \(3.14\) in²