Question

1. a circular hole was dug on a construction site with a diameter of 32 feet. about how much protective fencing would be needed in order to place a boundary around the outside of the hole?

Explanation:

Step1: Find radius from diameter

The diameter $d=32$ ft, so radius $r=\frac{d}{2}=\frac{32}{2}=16$ ft.

Step2: Calculate circumference (fencing length)

Use circumference formula $C=2\pi r$.
$C=2\times\pi\times16=32\pi\approx32\times3.14=100.48$ ft.

Answer:

About 100.48 feet of protective fencing is needed.