Question

estimate values of expressions with pi quick check
what is the circumference of a circle with a diameter = 4 feet? which of the following is the best estimation for the circumference? (1 point)
50 feet
25 feet
6 feet
13 feet

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.

Step2: Substitute the given diameter into the formula

Given \( d = 4 \) feet, and we know that \( \pi\approx3.14 \). So \( C=\pi\times4\approx3.14\times4 = 12.56 \) feet.

Step3: Compare with the given options

Among the options 50 feet, 25 feet, 6 feet, and 13 feet, 12.56 is closest to 13 feet.

Answer:

13 feet (the option with "13 feet")