Midterm Vocabulary Period 1

An angle that measures less than 90 degrees.

180 degrees

Two angles that add to 90 degrees

Slopes that are opposite reciprocals of each other.

Quadrilateral with two sets of opposite parallel sides.

A triangle with at least two congruent sides.

Angles that share a side.

Lines that are not parallel, do not intersect, and are not on the same plane.

Intersect to form 90 degree angles

Angles that are on opposite sides of the transversal on the interior of the intersected lines.