Types of Triangles

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle where one angle is greater than 90 degrees.

Tags

CCSS.4.G.A.2

Front

How can you identify an acute triangle?

Back

An acute triangle can be identified by checking that all its angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

How can you identify a right triangle?

Back

A right triangle can be identified by finding one angle that is exactly 90 degrees.

Tags

CCSS.2.G.A.1

Front

How can you identify an obtuse triangle?

Back

An obtuse triangle can be identified by finding one angle that is greater than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is the sum of the angles in any triangle?

Back

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

Tags

CCSS.8.G.A.5

Front

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

Back

It is a right triangle.

Tags

CCSS.4.G.A.2

Front

If all angles of a triangle are less than 90 degrees, what type of triangle is it?

Back

It is an acute triangle.

Tags

CCSS.4.G.A.2

Front

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

Back

It is an obtuse triangle.

Tags

CCSS.4.G.A.2