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The circumference of a circle is 7.22cm and pi is 3.14, what is the diameter?

User Berezh
by
8.9k points

1 Answer

5 votes

Answer:

2.30 cm

Explanation:

Circumference of circle= πD, where D is the diameter.

Substitute all the given information into the formula:

7.22= 3.14D

Divide both sides by 3.14:

D= 7.22 ÷3.14

D= 2.30 (3 s.f.)

Thus, the diameter is 2.30 cm. (rounded off to 3 significant figures)

User John Gardner
by
8.1k points

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