Classifying Triangles

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all three angles measuring 60 degrees.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and all angles of different measures.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length and the angles opposite those sides are equal.

Front

What defines a right triangle?

Back

A triangle that has one angle measuring 90 degrees.

Front

What is an acute triangle?

Back

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

Front

What is an obtuse triangle?

Back

A triangle that has one angle measuring more than 90 degrees.

Front

How can you identify a right scalene triangle?

Back

It has one right angle and all sides of different lengths.

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

What is the difference between acute and obtuse triangles?

Back

Acute triangles have all angles less than 90 degrees, while obtuse triangles have one angle greater than 90 degrees.

Front

Can a triangle be both isosceles and right?

Back

Yes, a triangle can be isosceles and have a right angle.