Classifying Triangles by Angles

Front

What type of triangle has all angles less than 90 degrees?

Back

Acute Triangle

Tags

CCSS.4.G.A.2

Front

What type of triangle has one angle that is exactly 90 degrees?

Back

Right Triangle

Tags

CCSS.4.G.A.2

Front

What type of triangle has one angle that is greater than 90 degrees?

Back

Obtuse Triangle

Tags

CCSS.4.G.A.2

Front

A right triangle is...

Back

a triangle with a 90 degree angle.

Tags

CCSS.4.G.A.2

Front

An acute triangle is...

Back

a triangle where all angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

An obtuse triangle is...

Back

a triangle with one angle larger than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Tags

CCSS.8.G.A.5

Front

If one angle in a triangle is 90 degrees, what type of triangle is it?

Back

Right Triangle.

Tags

CCSS.4.G.A.2

Front

If all angles in a triangle are equal, what type of triangle is it?

Back

Equilateral Triangle.

Tags

CCSS.4.G.A.2

Front

What is the definition of a scalene triangle?

Back

A triangle with all sides of different lengths.

Tags

CCSS.4.G.A.2