A circle has a circumference of 28.26. What is the diameter of the circle? Please tell me how you did it!

Mathematics · High School · Tue Nov 03 2020

Answered on

Circumference of circle = 28.26

Formula:

Circumference of circle 2πr

28.26 = 2 × 22/7 × r

r = 28.26 × 7 /44

r = 4.495 ≈ 4.5

We know, diameter = 2 × Radius

= 2 × 4.5

= 9 

 

Thus, diameter of circle is 9