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1 vote
A circle has a radius of 7cm. Which of these is closest to its circumference?

User Mircea
by
7.6k points

2 Answers

6 votes

Answer:

Approximately 22 or 7πcm

Explanation:

The ratio between the circumference of a circle and its diameter is π. We commonly write c=2πr, using the radius instead and doubling.

In the given example, we are told that the diameter is

7 cm. So using the common approximation π≈
(22)/(7) we find that the circumference is approximate:


(22)/(7) * 7cm= 22 cm

User Emman
by
8.3k points
1 vote

Answer:

You didn't list the answers but it's 43.98 so close to 44 I'm guessing

Explanation:

circumference=2*pi*r

2*3.14*7=about 44

User Ergosys
by
7.3k points

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