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What Math Formula To Use.

Discussion in 'The Okie Corral' started by Goldendog Redux, Jun 21, 2012.

  1. Goldendog Redux

    Goldendog Redux Shut your mouth

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    What formula do I use to calculate dimensions in an isosceles trapezoid? Basically I want to be able to calculate the base length when I know the top length, angle/degree of sides and height of sides.
    [​IMG]

    So if the top is 16 1/2 ", the height is 23 1/4" and the degree of slope is 10* or 100* depending on how you look at it, what will the base dimension be?

    I am building plyo boxes and if I have the formula I should be able to vary the height of each box if I know the dimension and the the angle is constant.

    Yes, I could build right angle boxes but I don't want to.

    Sorry I am clearly not a math person and I hope I explained it well.

    Thanks

    MF
     
    Last edited: Jun 21, 2012
  2. DoubleWide

    DoubleWide

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    Since it's symmetrical, just think of it as a square with 2 right triangles.
     

  3. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

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    24.7".

    tan 80 = 23.25/b

    2b + 16.5 = the base

    [​IMG]
     
  4. Goldendog Redux

    Goldendog Redux Shut your mouth

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