A circle has a circumference of 21.98 inches. What is the diameter of the circle? (Use 3.14 for )

Question

I don't understand how to solve the question of what its asking.

Answer 1

Start by looking up the formula for the circumference of a circle. It's:

Circumference = π·d

where d is the diameter. You are told to use π = 3.14 and that the circumference is 21.98 inches, so:

Circumference = π·d

21.98 = (3.14)·d

Solve for d, the diameter. The units are inches.