When lines, rays, or line segments share a common point.

Two lines that travel in the same direction.

Two rays that share the same endpoint form this.

Angles smaller than 90 degrees.

Two lines that meet at a right angle.

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geometry4a

geometry continued

Question	Answer
Intersection	When lines, rays, or line segments share a common point.
Parallel Lines	Two lines that travel in the same direction.
Angle	Two rays that share the same endpoint form this.
Acute Angles	Angles smaller than 90 degrees.
Obtuse Angles	Angles larger than 90 degrees.
Right Angles	Angles that are 90 degrees.
Perpendicular Lines	Two lines that meet at a right angle.