Classifying Triangles

Front

In a ____________ triangle one angle is exactly 90 degrees.

Back

right

Front

What type of triangle has all sides of different lengths?

Back

scalene

Front

If a triangle has one angle greater than 90° and no equal sides, what type of triangle is it?

Back

Obtuse Scalene

Front

Which are pairs of vertical angles?

Back

∠COB & ∠AOD

Front

What type of triangle has all sides equal?

Back

Equilateral

Front

What type of triangle has two sides of equal length?

Back

Isosceles

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees

Front

If a triangle has angles measuring 60°, 60°, and 60°, what type of triangle is it?

Back

Equilateral

Front

What type of triangle has one angle less than 90 degrees?

Back

Acute

Front

What is the definition of a right triangle?

Back

A triangle with one angle measuring exactly 90 degrees.