Math vocabulary angles

Two Angles are ____________ when they add up to 180 degrees.

Supplementary angles

An _________ Angle is less than 90°

Acute angle

____________ Angles are a pair of angles on the outer side of each of those two lines but on opposite sides of the transversal.

Alternate exterior angles

_________________ Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.

Alternate interior angles

Two angles are _______________ when they add up to 90 degrees

Complementary angles

The angles in matching corners of parallel lines crossed by a transversal are called _____________ Angles

Corresponding angles

An __________ Angle is more than 90° but less than 180°

Obtuse angle

Lines are ------ if they are always the same distance apart (called "equidistant"), and will never meet.

Parallel lines

A _________ angle is an internal angle which is equal to 90°

Right angle

The pairs of angles on one side of the transversal but inside the two lines are called ____________________ Angles.

Same side interior angles

A line that crosses at least two other lines.

Transversal

___________ Angles are the angles opposite each other when two lines cross; they share the same Vertex (corner point)

Vertical angles