Types of Triangles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Tags

CCSS.2.G.A.1

Front

What are the three types of triangles based on angles?

Back

Acute, Right, and Obtuse.

Tags

CCSS.4.G.A.2

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 that has one angle greater 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 the presence of a 90-degree angle.

Tags

CCSS.2.G.A.1

Front

If a triangle has angles measuring 30°, 60°, and 90°, what type of triangle is it?

Back

It is a right triangle.

Tags

CCSS.4.G.A.2

Front

If a triangle has angles measuring 45°, 45°, and 90°, what type of triangle is it?

Back

It is a right triangle.

Tags

CCSS.4.G.A.2

Front

If a triangle has angles measuring 70°, 60°, and 50°, what type of triangle is it?

Back

It is an acute triangle.

Tags

CCSS.4.G.A.2

Front

If a triangle has angles measuring 120°, 30°, and 30°, what type of triangle is it?

Back

It is an obtuse triangle.

Tags

CCSS.4.G.A.2