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28 January, 20:24

The formula for the area of a trapezoid is a=1/2h (b+b) express b in terms a, h, and b2

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  1. 28 January, 20:30
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    The area of a trapezoid is

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

    ('h' is the height of the trapezoid. 'b1' and 'b2' are its two bases.)

    You want the equation solved for one base.

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

    Multiply each side by 2 : 2A = h (b1 + b2)

    Divide each side by 'h' : 2A/h = b1 + b2

    Subtract b1 from each side: 2A/h - b1 = b2
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