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"A rectangle is a parallelogram with one right angle". Doesn't sound sensible when you read it but a little thought will show that if one angle in a parallelogram is 90o, then the other three must all be 90o also.

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15y ago

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Is a rectangle always going to be a parallelogram?

A rectangle is a special case of a parallelogram


Is a square a parlellegram?

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Is a rhombus a parallelogram but a parallelogram is not necessarily a rhombus?

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Can a square be a parellogram?

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Is a square a kind of parallelogram?

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