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How long are these rafters?


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Last updated 26 October 2012 15:30 by NZTecAdmin

How long should the rafters be for this gable roof?

Solution

The length of each rafter (r) must satisfy Pythagoras Theorem:

r2 = 1.6 2 + 8.32

r2 = 2.86 + 68.89

r2 = 71.75

r = 8.47m

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