Naming Triangles

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is a scalene triangle?

Back

A triangle where all sides have different lengths.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

A triangle where one angle is greater than 90 degrees.

Front

How can you identify an isosceles triangle?

Back

Look for at least two sides that are the same length.

Front

What type of angles does a right triangle have?

Back

One right angle (90 degrees) and two acute angles.

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Front

How do you classify a triangle with one obtuse angle?

Back

It is classified as an obtuse triangle.

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees; obtuse angles are greater than 90 degrees.