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Farm Building and Infrastructure
Buildings & Infrastructure
A bit of maths
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<blockquote data-quote="DrWazzock" data-source="post: 4541514" data-attributes="member: 2119"><p>I would decide how far out its going horizontally (X) and how far down it is vertically (Y) first.</p><p></p><p>Then you can work out the length of the beam Z using Pythagoras.</p><p></p><p>Z = square root of ( ( X times X ) + (Y times Y) )</p><p></p><p>The angle is 90 - Arctan( Y/X). You don't even need to know Z to work this out.</p><p></p><p>To work out Arctan use a web based calculator or scientific calculator where you press Inv then Tan making sure you have the calculator set to degrees, not radians.</p><p></p><p>If you are coming out 15 and down 2 it works out at 82.4 degrees angle in the top corner.</p><p></p><p>The beam length is 15 foot 1.6 inches.</p><p></p><p>(I think??!!!)</p></blockquote><p></p>
[QUOTE="DrWazzock, post: 4541514, member: 2119"] I would decide how far out its going horizontally (X) and how far down it is vertically (Y) first. Then you can work out the length of the beam Z using Pythagoras. Z = square root of ( ( X times X ) + (Y times Y) ) The angle is 90 - Arctan( Y/X). You don't even need to know Z to work this out. To work out Arctan use a web based calculator or scientific calculator where you press Inv then Tan making sure you have the calculator set to degrees, not radians. If you are coming out 15 and down 2 it works out at 82.4 degrees angle in the top corner. The beam length is 15 foot 1.6 inches. (I think??!!!) [/QUOTE]
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A bit of maths
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