Classifying Triangles

Front

An acute triangle has __________ angles that each measure less than 90°.

Back

three

Front

What is the name of a triangle with all sides of different lengths?

Back

Scalene

Front

An obtuse triangle has one angle that measures _____________ 90°.

Back

more than

Front

Identify the triangle by its sides and angles: A triangle with one right angle and all sides of different lengths.

Back

Right Scalene

Front

Identify the triangle by its sides and angles: A triangle with all sides equal and all angles equal to 60°.

Back

Equilateral

Front

What type of triangle has two sides of equal length?

Back

Isosceles

Front

A triangle with all angles measuring less than 90° is called a __________ triangle.

Back

Acute

Front

What is the sum of the angles in any triangle?

Back

180°

Front

A triangle with one angle measuring exactly 90° is called a __________ triangle.

Back

Right

Front

What type of triangle has one angle that measures more than 90°?

Back

Obtuse