Lines and Angles

Front

What is a ray?

Back

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

Tags

CCSS.4.G.A.1

Front

What is a line?

Back

A line is straight and extends in both directions forever.

Tags

CCSS.4.G.A.1

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Tags

CCSS.4.G.A.1

Front

What are parallel lines?

Back

Parallel lines are lines that will never intersect, no matter how far they are extended.

Tags

CCSS.HSG.CO.A.1

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

What is an acute angle?

Back

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

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What do we call two lines that intersect at a right angle?

Back

Perpendicular lines.

Tags

CCSS.HSG.CO.A.1

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5