Geometry Angles Flashcard

Parallel lines are lines in a plane that do not meet; they are always the same distance apart.

Supplementary angles are two angles whose measures add up to 180 degrees.

Angle APD is the angle formed at point P by the lines connecting points A and D.

Intersection is the point at which two lines meet or cross each other.

When two lines intersect, they form four angles.

A right angle measures exactly 90 degrees.

Complementary angles are two angles whose measures add up to 90 degrees.

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

An acute angle is an angle that measures less than 90 degrees.

Perpendicular lines are lines that intersect to form right angles.