Practice Classifying Triangles

Front

What is a triangle?

Back

A triangle is a polygon with three edges and three vertices.

Front

What are the three types of triangles based on side lengths?

Back

Equilateral, Isosceles, and Scalene.

Front

What defines an equilateral triangle?

Back

An equilateral triangle has all three sides of equal length.

Front

What defines an isosceles triangle?

Back

An isosceles triangle has at least two sides of equal length.

Front

What defines a scalene triangle?

Back

A scalene triangle has all sides of different lengths.

Front

What are the three types of triangles based on angles?

Back

Acute, Right, and Obtuse.

Front

What defines a right triangle?

Back

A right triangle has one angle that measures 90 degrees.

Front

What defines an acute triangle?

Back

An acute triangle has all angles measuring less than 90 degrees.

Front

What defines an obtuse triangle?

Back

An obtuse triangle has one angle that measures more than 90 degrees.

Front

How many right angles are in a right triangle?

Back

There is 1 right angle in a right triangle.