Geometry Flashcards- Unit 1 Vocabulary

Front

___________ are lines that lie in the same plane

Back

Coplanar Lines

Front

Points on the same line are __________ points

Back

Collinear

Front

These two lines will never intersect and have the same rise/run.

Back

Parallel Lines

Front

Formed by two rays that share a common end point

Back

Angle

Front

Two angles that add to be 90 degrees

Back

Complementary

Front

Two angles that add to be 180 degrees

Back

Supplementary

Front

The symbol ⊥ is used for which of the following notations?

Back

Perpendicular lines

Front

When two geometric objects have the same size and shape they are...

Back

congruent

Front

An angle measuring less than 90 degrees.

Back

Acute Angle

Front

An angle measuring 180 degrees.

Back

Straight Angle