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A parallelogram doesn't necessarily have any perpendicular sides, but it can.

If it has one single 90-degree angle, then it has four of them, and it's a rectangle or square.

A parallelogram without perpendicular sides is a rhomboid or rhombus.

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8y ago
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4y ago

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Anonymous

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4y ago
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Q: Does a parallelogram have perpendicular sides?
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