Classifying Triangles

Front

What is an acute triangle?

Back

A triangle with all three angles measuring less than 90 degrees.

Front

How many acute angles does an acute triangle have?

Back

3

Front

What is an obtuse triangle?

Back

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

Front

What type of triangle has only one obtuse angle and two congruent sides?

Back

Obtuse Isosceles Triangle.

Front

What is a scalene triangle?

Back

A triangle with all sides of different lengths and no congruent angles.

Front

What type of triangle has only acute angles and no congruent sides?

Back

Acute Scalene Triangle.

Front

What is an equilateral triangle?

Back

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

Front

What is the sum of the angles in any triangle?

Back

180 degrees.

Front

What is a right triangle?

Back

A triangle that has one angle measuring exactly 90 degrees.

Front

What is the definition of congruent sides?

Back

Sides that are of equal length.