Question

what is the circumft c = πd

Explanation:

Step1: Identify the diameter

The diameter $d = 4$ in.

Step2: Use the circumference formula

The formula for the circumference of a circle is $C=\pi d$. Substitute $d = 4$ into the formula, we get $C=\pi\times4 = 4\pi$ in.

Answer:

$4\pi$ in