math/formula 1

how do i find the area of trapezoids and triangles

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asked by Anonymous
  1. multiply base times height

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    posted by trapezoid girl
  2. Area of a triangle:
    Area=(base * height)/2

    Area of a trapezoid:
    Area=height * (b1 + b2)/2
    where:
    b1=length of top side
    b2=length of bottom side

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    posted by Quidditch
  3. Quiddithch is correct. The trapezoid's height is the distance between the two parallel sides, b1 and b2. For a triangle, you can choose any side for the base, but must measure the height from that chosen base when using the formula.

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    posted by drwls

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