3 years ago

If diameter of a circle is 28 cm,then the circumference of the circle is equal to

2 answers:

8 0

C = 2 pi r

R is radius and it’s half of diameter
Pi is always a constant = 3.14

Diameter = D = 2r

We substitute the 2r with D

C = D pi = 28*3.14

Circumference = 87.9 cm (don’t forget your units)

ratelena [41]3 years ago

4 0

Answer:87.92

Step-by-step explanation: you multiply the diameter by pie or 3.14 to get the circumference

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