Ch. 1 Vocab. Review

Front

Angle > 0° and < 90°

Back

acute angle

Front

Two angles sharing a vertex and side, with no interior points.

Back

adjacent angles

Front

Set of points with two rays sharing an endpoint.

Back

angle

Front

Ray that divides an angle into two congruent angles?

Back

angle bisector

Front

Points on the same line?

Back

Collinear points

Front

Two angles that sum to 90°

Back

complementary angles

Front

Two angles with the same measure.

Back

Congruent angles

Front

Line segments of equal length?

Back

Congruent segments

Front

Points in the same plane?

Back

Coplanar points

Front

Points representing the ends of a line segment or ray?

Back

endpoints