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38 votes
38 votes
The circumference of a circle is 81.64 km what is the circles radius? use 3.14 for pi

User Marshall Anschutz
by
2.8k points

2 Answers

24 votes
24 votes

Answer:

12.99km

Explanation:

Using the formula

C=2(pi)(r)

User Noob
by
2.8k points
14 votes
14 votes

Answer:

13km

Explanation:

We can use the formula [ r = C/2π ] to solve.

r = 81.64/2(3.14)

r = 81.64/6.28

r = 13km

Best of Luck!

User Vinu M Shankar
by
3.3k points