Classifying Triangles

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle with at least two sides of equal length.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle with all three sides of equal length.

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 that has one angle greater than 90 degrees.

Front

How many congruent sides does an isosceles triangle have?

Back

An isosceles triangle has 2 congruent sides.

Front

What is a right isosceles triangle?

Back

A right isosceles triangle is a triangle that has a right angle and two sides of equal length.

Front

What is a right scalene triangle?

Back

A right scalene triangle is a triangle that has a right angle and all sides of different lengths.

Front

What is a right equilateral triangle?

Back

A right equilateral triangle is not possible because all angles in an equilateral triangle are 60 degrees.