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Alenkasestr [34]

2 years ago

12

Three circles are arranged in a row so that each is tangent to the

1 answer:

lorasvet [3.4K]2 years ago

7 0

<span>πd is the circumference of a circle, so with a diameter of 4 a single circle has a circumference of 4π. 1/3 of each circle is in contact with the belt, so that total part is still 4π. Then, the part of the belt connecting from tangent to tangent is 2 radii, so 3 areas is 12. The belt would then be 12+4π cm.</span>

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