Classifying Triangles 4th Grade

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is an acute triangle?

Back

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

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 that has one angle greater than 90 degrees.

Front

How can you identify an isosceles triangle?

Back

Look for two sides that are the same length.

Front

How can you identify an equilateral triangle?

Back

Check if all three sides are the same length.

Front

How can you identify a scalene triangle?

Back

All sides are of different lengths.

Front

How can you identify an acute triangle?

Back

All angles are less than 90 degrees.