Classify Triangles

Front

How many acute angles must an acute triangle have?

Back

3

Front

A triangle with 3 congruent sides is called a(n) ______

Back

Equilateral Triangle

Front

What type of triangle has one right angle?

Back

Right Triangle

Front

What type of triangle has two sides of equal length?

Back

Isosceles Triangle

Front

What type of triangle has all sides of different lengths?

Back

Scalene Triangle

Front

A triangle with one obtuse angle is called a(n) ______

Back

Obtuse Triangle

Front

What is the sum of the angles in any triangle?

Back

180 degrees

Front

What type of triangle has all angles less than 90 degrees?

Back

Acute Triangle

Front

If a triangle has one angle greater than 90 degrees, it is called a(n) ______

Back

Obtuse Triangle

Front

What is the name of a triangle with two equal angles?

Back

Isosceles Triangle