alternate angles

In geometry, 'alternate angles' are crucial for understanding the properties of parallel lines intersected by a transversal.

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Definition

B2Geometry

(technical, academic)Pairs of angles formed when a transversal intersects two lines, lying on opposite sides of the transversal.

Example

  • When a transversal crosses two parallel lines, alternate angles are always equal.

B2Geometry

(technical, academic)Angles located between two lines and on opposite sides of a transversal.

Example

  • Alternate interior angles are equal when the lines are parallel.

B2Geometry

(technical, academic)Angles located outside two lines and on opposite sides of a transversal.

Example

  • Alternate exterior angles are congruent when the lines are parallel.

Similar

Terms that have similar or relatively close meanings to "alternate angles":

supplementary anglescomplementary anglesright angleangle shootingvertical angleangle shotangle quotethird angle projectionplane angleangle forangle barfirst angle projectioncritical angleangle bracket