Question

possible points: 100
the circular rim of a basketball hoop has a diameter of 18 inches. which measure is closest to the circumference of the rim?
26.3 inches
56.5 inches
113.0 inches
254.3 inches

Explanation:

Step1: Recall circumference formula

The formula for the circumference \( C \) of a circle is \( C = \pi d \), where \( d \) is the diameter.

Step2: Substitute diameter value

Given \( d = 18 \) inches, substitute into the formula: \( C=\pi\times18 \). Using \( \pi\approx3.14 \), we get \( C\approx3.14\times18 \).

Step3: Calculate the product

\( 3.14\times18 = 56.52 \), which is closest to 56.5 inches.

Answer:

56.5 inches (the second option, assuming the options are 26.3, 56.5, 113.0, 254.3; so the answer is the option with 56.5 inches, e.g., if it's labeled as the second option, like B. 56.5 inches)