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The height of the trapezoid is 2h and bases are2 $\"\"$ and 2 $\"\"$ .

Area of a trapezoid is $\"\"$

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$\"\"$ (Substitute 2 $\"\"$ for $\"\"$ , 2 $\"\"$ for $\"\"$ and 2h for h)

$\"\"$ ( $\"\"$ )

$\"\"$ (Multiply: $\"\"$ )

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If the heights and bases of the trepezoid are doubled then its area will be quadrupled. \ \

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If the heights and bases of the trepezoid are doubled then its area will be quadrupled.