The chemistry teacher decides to use chalk paint to cover a circular portion of a wall in the science lab. If the greatest distance across the circle is 4 feet, approximately how big around is the circle? Round answer to the nearest hundredth. Do NOT include units of measure in your answer.
The diameter of the circle is equal to the greatest distance across it, which is 4 feet. The circumference of a circle is calculated using the formula C = πd, where "C" is the circumference, "π" is a constant approximately equal to 3.14159, and "d" is the diameter.
Therefore, the circumference of the circle is C = π * 4 = 3.14159 * 4 = 12.56636 feet.
Rounded to the nearest hundredth, the circumference of the circle is approximately 12.57.