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The radius of a circle is 4.2 kilometers. What is the circle's circumference?

Use 3.14 for ​ and round your answer to the nearest hundredth

User Arielf
by
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2 Answers

4 votes

Answer:26.39

Step-by-step explanation: formula of circumference:2.π. r

2 . π. 4.2 = 26.39

User Dave Johansen
by
8.1k points
5 votes

Answer:

12.56 km

Explanation:

Circumference of circle = 2 · π · r

π = 3.14

r = 4.2 kilometers

Let's solve

2 · 3.14 · 4.2 = 26.376 km

So, the circumference of the circle is 26.376 km.

User Amit Thaper
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8.7k points