Classifying Triangles

Front

What is an acute triangle?

Back

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

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.

Front

Can a triangle have three right angles?

Back

No, a triangle cannot have three right angles.

Front

What are the angle measurements of an acute triangle?

Back

All angles in an acute triangle are less than 90 degrees.

Front

What are the angle measurements of a right triangle?

Back

A right triangle has one angle that is exactly 90 degrees.

Front

What are the angle measurements of an obtuse triangle?

Back

An obtuse triangle has one angle that is greater than 90 degrees.

Front

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

Back

It is a right triangle.

Front

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

Back

It is a right triangle.

Front

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

Back

It is an acute triangle.