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
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https://ibb.co/7RYPk8f
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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
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
= = 12*3.14159 + 36 = 73.7 cm (rounded).
Solved.
I think, everything in this problem is obvious even for a child.