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The figures below are similar.

4 cm
8 cm

What is the ratio of the circumference of the smaller circle to the circumference of the larger circle?

Write your answer as the ratio of two whole numbers separated by a colon (for example
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1 Answer

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The answer is 1:2

Step-by-step explanation:

For small circle

r = 4

2πr = 2 × 3.14 × 4 = 25.12

For big circle

r = 8

2πr = 2 × 3.14 × 8 = 50.24

Now,

if we divide both answers we get,

25.12 ÷ 50.24 = 1/2=1:2
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