$\"\"$

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The formula for the area of a trapezoid is $\"\"$ .

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Solve $\"\"$ for h.

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Multiply each side by $\"\"$ .

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$\"\"$

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Cancel common terms.

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$\"\"$ .

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This is option A. $\"\"$

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Solve $\"\"$ for $\"\"$ .

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Multiply each side by $\"\"$ .

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$\"\"$

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Cancel common terms.

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$\"\"$

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Subtract each side by $\"\"$ .

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$\"\"$

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$\"\"$ .

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This is option B. $\"\"$

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Solve $\"\"$ for $\"\"$ .

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Multiply each side by $\"\"$ .

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$\"\"$

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Cancel common terms.

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$\"\"$

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Subtract each side by $\"\"$ .

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$\"\"$

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$\"\"$ .

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This is option D. $\"\"$

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The option C is not equivalent to the formula.