Question

3)
1 in
c=
a=

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 \( A=\pi r^{2}\). Substitute \( r = 1\) in:
\( A=\pi\times1^{2}=\pi\approx3.14\) in².

Answer:

\( C = 6.28\) in, \( A = 3.14\) in²