intercept theorem

Fetched 2026-10-26 (cache).

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Proper noun

1. {{lb|en|geometry}} An important [[elementary]] theorem about the [[ratio]]s of various [[line segment]]s that are created if two [[ray]]s with a common starting-point are [[intercept]]ed by a pair of [[parallel]]s. It is equivalent to the theorem about ratios in [[similar]] [[triangle]]s.

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