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17 January, 14:51

The area of a trapezoid is given by the formula A=h/2 (a+b).

Solve the formula for b.

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  1. 17 January, 17:17
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    (2A) / h - a = b

    Step-by-step explanation:

    A = [h (a+b) ]/2 I rewrote the formula, because h and a+b are in the numerator.

    2A=h (a+b) Multiply both sides of equation by 2

    (2A) / h = a+b Divide both side by h

    (2A) / h - a = b Subtract a from both sides
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