Question

The circumference of a circle is 8.44cm.

Find the length of the diameter.
Give your answer rounded to 2 DP.​

Answer 1

Diameter = 2.68cm

Explanation:

Circumference of a circle = 2πr

Circumference of a circle = 8.44cm

π = 3.14

r = ?

Circumference of a circle = 2πr

8.44 = 2 * 3.14 * r

8.44 = 6.28r

r = 8.44/6.28

r = 1.3439490445859

Approximately

r = 1.34

Diameter = 2r

Diameter = 2 * 1.34

Diameter = 2.68cm