Types of Triangles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the three types of triangles based on angles?

Back

Acute, Right, and Obtuse.

Front

What is an acute triangle?

Back

An acute triangle has all angles less than 90 degrees.

Front

What is a right triangle?

Back

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

Front

What is an obtuse triangle?

Back

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

Front

How can you identify an acute triangle?

Back

If all three angles are less than 90 degrees, it is an acute triangle.

Front

How can you identify a right triangle?

Back

If one angle is exactly 90 degrees, it is a right triangle.

Front

How can you identify an obtuse triangle?

Back

If one angle is greater than 90 degrees, it is an obtuse triangle.

Front

What is the sum of the angles in any triangle?

Back

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

Front

Can a triangle have two right angles?

Back

No, a triangle cannot have two right angles because the sum of angles would exceed 180 degrees.