SOLUTION: Three curtain rods, each with diameter 12 cm, are bound together by a band, as illustrated. Find the length of the band, in cm. https://ibb.co/7RYPk8f

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: Three curtain rods, each with diameter 12 cm, are bound together by a band, as illustrated. Find the length of the band, in cm. https://ibb.co/7RYPk8f       Log On

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Question 1208995: Three curtain rods, each with diameter 12 cm, are bound together by a band, as illustrated. Find the length of the band, in cm.
https://ibb.co/7RYPk8f

Answer by ikleyn(52817) About Me  (Show Source):
You can put this solution on YOUR website!
.

There are three linear parts, each of the length  12/2 + 12/2 = 12 cm,


plus three arcs, which comprise the whole circle of the diameter 12 cm.


So, the final answer is THIS:  the length of the band is  

    3%2A12+%2B+pi%2A12 = 12%2Api%2B36 = 12*3.14159 + 36 = 73.7  cm  (rounded).

Solved.

I think, everything in this problem is obvious even for a child.