Question

1. a circular pond has a diameter of 39 meters. if lori walks one lap around the perimeter of the pond, how far does she walk? round your answer to the nearest tenths place.

Explanation:

Step1: Recall the formula for circumference

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

Step2: Substitute the given diameter

Given \(d = 39\) meters. Substitute into the formula: \(C=\pi\times39\).

Step3: Calculate the value

Using \(\pi\approx3.14159\), \(C = 3.14159\times39=122.52201\) meters.

Step4: Round to the nearest tenths

Rounding \(122.52201\) to the nearest tenths (one - decimal place). The digit in the hundredths place is \(2\), so we keep the tenths digit as it is.

Answer:

\(122.5\) meters