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A = [tex]\frac{1}{2}[/tex]h(B + b) Solve for B.
(area of a trapezoid)

Sagot :

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A = 1/2h(B+b)

Multiply both sides by 2:

2A = h(B+b)

Divide both sides by h:

2A/h = (B+b)

Subtract b from both sides:

2A/h - b = B

Switch the equation  so B is on the left side:

B = 2A/h - b

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Step-by-step explanation:

[tex]a = \frac{1}{2} h( \beta + b) \\ 2a = h( \beta + b) \\ \frac{2a}{h} = \beta + b \\ \frac{2a}{h} - b = \beta \\ thank \: you[/tex]

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