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Circle with radius of 13 mm. What is the perimeter of Circle #1?

a) 81.64 mm
b) 40.82 mm
c) 204.12 mm
d) 102.06 mm

1 Answer

4 votes

Final answer:

The perimeter of the circle with a radius of 13 mm is approximately 81.64 mm.

Step-by-step explanation:

The perimeter of a circle can be found using the formula P = 2πr, where P is the perimeter and r is the radius. In this case, the radius of the circle is 13 mm. Plugging in this value, we get P = 2π(13) = 26π mm. Using an approximation of π as 3.14, we can calculate the perimeter as P ≈ 26(3.14) = 81.64 mm.

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