Need help figuring out angles of a planter box


  #1  
Old 05-01-10, 07:38 PM
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Need help figuring out angles of a planter box

This is a polygon I think. It has 2 sides that are 9' and one end is 4' and the other is 8'. So it is shaped somewhat like this:
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So can anyone tell me how to figure out what I should cut the angles at?
Thanks for your time Beer 4U2
 
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Old 05-01-10, 11:49 PM
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I believe it is a isosceles trapezoid, not sure what the equation is but if my 14 year old was awake she would probably laugh at me than tell me. But you could use a t-bevel to get the angle. Set that on your miter saw if you have one and that would give you the angle. You could also just trace or draw it on cardboard, thin plywood, or scrap wood.

Try here: isosceles trapezoid calculator
 
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Old 05-01-10, 11:54 PM
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Thanks but it's 9 feet in length and though I have the pieces generally cut it is really hard to lay out accurately so therefore just want to go by the angle.
 
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Old 05-02-10, 12:11 AM
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Use the isosceles trapezoid Calculator than split the angle you get in half and that is the angle you would cut your wood at. So if it is 98 degrees than you would cut your wood at 49 degrees. Hope that helps.
 
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Old 05-02-10, 10:56 AM
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That is a great link! Thanks, that did it. Off to make that planter and my wife will be happy
 
 

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