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The formula for the area of a trapezoid is A=1/2h(b1+b2) were h is the height of the trapezoid, and b1 and b2 are the base lengths of the trapezoid. Which formula can be used to find the length of b1?

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  1. A=1/2h(b1+b2)
    2A = hb1 + hb2
    2A - hb2 = hb1
    b1 = (2A - hb2)/h

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  2. u dum u so dum
    676

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  3. you're mean

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