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A belt is drawn tightly around three circles of radius 10 cm each, as shown*. What is the length of the belt? Please express your answer in terms of pi?

(π).

 

* It's the 2nd image where the circles are shaped like a triangle! 

 Nov 2, 2021
 #1
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The length of the belt = 60 + 20pi

 Nov 3, 2021
 #3
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Length of belt (first one) = 40 * 2   + pi * 20 = 80 + 20pi = ~142.83 cm

Guest Nov 3, 2021
 #2
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I suggest trying to connect the center of the circles and then drawing lines from those centers onto the belt. :))

 

=^._.^=

 Nov 3, 2021
 #4
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Thanks for the information, I will try to figure it out for more. Looking for the same concern.

 

 

My Balance Now

nguyema89  Nov 3, 2021
edited by nguyema89  Nov 8, 2021
 #5
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You should be able to work it out from this pic.

 

 Nov 4, 2021

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