Naming Triangles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Tags

CCSS.2.G.A.1

Front

What are the three types of angles in triangles?

Back

Acute, Right, and Obtuse.

Tags

CCSS.4.G.A.2

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90 degrees.

Tags

CCSS.4.G.A.2

Front

What is an equilateral triangle?

Back

A triangle where all three sides are equal in length.

Tags

CCSS.4.G.A.2

Front

What is an isosceles triangle?

Back

A triangle that has at least two sides of equal length.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A triangle where all three sides are of different lengths.

Tags

CCSS.4.G.A.2

Front

How can you identify a right triangle?

Back

It has one angle that measures exactly 90 degrees.

Tags

CCSS.2.G.A.1

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Tags

CCSS.8.G.A.5