Question

The ratio of the distance around a circle, the circumference, to the distance across a circle, the diameter, is represented by the Greek letter a. If the circumference of a circle is 6.28 inches and the diameter of the same circle is 2 inches, what is the approximate value of a to two decimal places?​

Answer 1

Answer:

3.14 inches

Step-by-step explanation:

diameter=2inches radius =1

The formula for circumference of a circle with radius r is 2πr.

The formula for the area of a circle with radius r is πr²

π≈3.14

So the radius of our circle is 

6.28/2π

≈6.28/2×3.14=1

its area is πr²

≈3.14×1²=3.14