A circle has a diameter of 42 inches. What is the circumference of the circle? * 2 points
21 inches
66 inches
132 inches
263 inches
A circle has a radius of 16 units. What is the area in square units of the circle? *
2 points
803.84 sq. units
50.24 sq. units
100.48 sq. units
12.56 sq. units

A circular fountain has 132 feet of railing around it. What is the area of the fountain to the nearest square foot? Use 3.14 for π. *

The Sarsen Circle at Stonehenge has a circumference of 304.7 feet. What is the radius in feet of the Sarsen Circle? *
answer s