Final Ch1/2 Review

Front

Points that lie on the same line

Back

Collinear points are points that lie on the same straight line.

Front

Ray EA and Ray EB are opposite rays. True or False?

Back

False. Opposite rays share a common endpoint and extend in opposite directions.

Front

Find y if the angles are supplementary and one angle is 50 degrees.

Back

y = 130 degrees.

Front

What is the angle relationship when two angles are on the same side of the transversal and inside the two lines?

Back

Same Side Interior.

Front

Which angle is an OBTUSE angle? < ECD, < BCD, < ACB, < BCE

Back

< ECD is an obtuse angle.

Front

What are coplanar points?

Back

Coplanar points are points that lie on the same plane.

Front

Define vertical angles.

Back

Vertical angles are the angles opposite each other when two lines intersect.

Front

What is the definition of a ray?

Back

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

Front

What is the definition of an acute angle?

Back

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

Front

What is the definition of a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.