3 years ago

Find The Circumference of The Circle with Diameter 2.1cm

Mathematics

2 answers:

Sonbull [250]3 years ago

5 0

Answer:

Step-by-step explanation:

Since the diameter is 2.1 then its radius is 1.05.

Therefore the circumference is $C=2\pi r=2\pi (1.05)=2.1\pi$ .

galina1969 [7]3 years ago

5 0

Answer:

6.6cm

Step-by-step explanation:

Use 2pie R

Diameter = 2 x radius

So your radius is 1. 05

2 x 22/7 x 1.05 = 6.6

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