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Need help calculating the length for a cut

1142 Views 6 Replies 3 Participants Last post by  rkwerchan
Not sure if I'm just slow today or what, but I can't figure this out. Building a work bench onto a wall using 2x4s. Bench comes 21" from the wall and I'm trying to make the angle cuts to go from the outside 2x4 to the wall (basically a triangle). Can anyone tell me how to figure this?
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A squared plus B squared equals C squared according to Mr Pythagorus.

Not sure how far down you want it to go on the wall.

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