Lines and Angles in Shapes

Front

What is an obtuse triangle?

Back

A triangle with one angle larger than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Tags

CCSS.4.G.A.1

Front

What are parallel lines?

Back

Lines that never meet and are always the same distance apart.

Tags

CCSS.HSG.CO.A.1

Front

What is a triangle?

Back

A polygon with three sides and three angles.

Tags

CCSS.2.G.A.1

Front

What is a quadrilateral?

Back

A polygon with four sides and four angles.

Tags

CCSS.2.G.A.1

Front

What is a right triangle?

Back

A triangle that has one right angle.

Tags

CCSS.4.G.A.2

Front

What is the sum of angles in a triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

What is an acute triangle?

Back

A triangle with all three angles measuring less than 90 degrees.

Tags

CCSS.4.G.A.2