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BoolQ / are all the angles equal in a parallelogram

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are all the angles equal in a parallelogram
passage · full text (497 characters)
In Euclidean geometry, a parallelogram is a simple (non-self-intersecting) quadrilateral with two pairs of parallel sides. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. The congruence of opposite sides and opposite angles is a direct consequence of the Euclidean parallel postulate and neither condition can be proven without appealing to the Euclidean parallel postulate or one of its equivalent formulations.

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task_id
a0620382-a54d-5f05-89e9-002dce46e7d9
task_key
default--validation--a0620382-a54d-5f05-89e9-002dce46e7d9
task_revision_id
1
config / split
default / validation

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