Question

1. find the circumference of a circle with radius of 18 in. leave your answer in terms of π. 324 π in. 54 π in. 36 π in. 18 π in.

Explanation:

Step1: Recall circumference formula

The formula for the circumference \( C \) of a circle is \( C = 2\pi r \), where \( r \) is the radius.

Step2: Substitute radius value

Given \( r = 18 \) in, substitute into the formula: \( C = 2\pi \times 18 \).

Step3: Simplify the expression

\( 2\times18 = 36 \), so \( C = 36\pi \) in.

Answer:

36π in (corresponding to the option "36π in.")