Find the missing side if the perimeter of the given figure is 32 cm.

5 cm

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9 cm

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8 cm

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6 cm

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Solution

The correct option is D 6 cm
Perimeter = sum of all sides
32 cm = 5 cm + 6 cm + 7 cm + 8 cm + the missing side
$\Rightarrow$ 32 cm = 26 cm + the missing side

To find the missing side, we need to subtract the sum of the known sides from the perimeter.
$\Rightarrow$ The missing side = 32 cm - 26 cm
= 6 cm

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