Question

greg installed a circular drain that has a diameter of 4.8 inches.
question:
to the nearest tenth of an inch, what is circumference of the drain?
7.5
15.1
18.1
30.1

Explanation:

Step1: Recall the formula for the circumference of a circle

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

Step2: Substitute the given diameter into the formula

We are given that the diameter \( d = 4.8 \) inches. Using \( \pi\approx3.14 \), we substitute \( d \) into the formula: \( C = 3.14\times4.8 \).

Step3: Calculate the product

\( 3.14\times4.8 = 15.072 \).

Step4: Round to the nearest tenth

To round \( 15.072 \) to the nearest tenth, we look at the hundredth place, which is 7. Since \( 7\gt5 \), we round up the tenth place. So \( 15.072\approx15.1 \).

Answer:

15.1