Classifying Triangles

Front

What is an acute triangle?

Back

A triangle where all angles are less than 90°.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90°.

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90°.

Front

What is a scalene triangle?

Back

A triangle with no sides the same length.

Front

What is an isosceles triangle?

Back

A triangle with two sides the same length.

Front

What is an equilateral triangle?

Back

A triangle with all three sides the same length.

Front

How do you classify a triangle with all angles less than 90°?

Back

It is classified as an acute triangle.

Front

How do you classify a triangle with one angle equal to 90°?

Back

It is classified as a right triangle.

Front

How do you classify a triangle with one angle greater than 90°?

Back

It is classified as an obtuse triangle.

Front

What type of triangle has two sides the same length?

Back

It is called an isosceles triangle.