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The button on Leslie's pants has a radius of 4 millimeters. What is the button’s circumference?

User Pera
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2 Answers

4 votes

Final answer:

The circumference of Leslie's button is approximately 25 mm, calculated using the formula C = 2πr with the radius of 4 mm and rounding to two significant figures.

Step-by-step explanation:

The circumference of Leslie's button can be found using the formula for the circumference of a circle, which is C = 2πr, where r is the radius of the circle and π (pi) is approximately 3.1415927. Since Leslie's button has a radius of 4 millimeters, we simply plug this value into the formula to calculate the circumference.

Therefore, the circumference of Leslie's button is C = 2 × 3.1415927 × 4 mm = 25.1327412 mm. Because the radius was given to two significant figures, we should also express our answer to two significant figures, so the circumference is approximately 25 mm.

User Daniel Neel
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7.4k points
4 votes

Answer:

8
\pi millimeters

25.1327 millimeters

Step-by-step explanation:

circumference is found by 2(pi)r

since r = 4

2(pi)(4)

8
\pi

User Fandasson
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6.4k points