classification of Triangles

Front

What is a triangle?

Back

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

Tags

CCSS.2.G.A.1

Front

What are the three types of angles in a triangle?

Back

Acute (less than 90 degrees), Right (exactly 90 degrees), and Obtuse (more than 90 degrees).

Tags

CCSS.4.G.A.2

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are acute (less than 90 degrees).

Tags

CCSS.4.G.A.2

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle greater than 90 degrees.

Tags

CCSS.4.G.A.2

Front

How many acute angles does an acute triangle have?

Back

An acute triangle has three acute angles.

Tags

CCSS.4.G.A.2

Front

How many right angles does a right triangle have?

Back

A right triangle has one right angle.

Tags

CCSS.4.G.A.2

Front

How many obtuse angles can an obtuse triangle have?

Back

An obtuse triangle can have only one obtuse angle.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle that has no equal sides.

Tags

CCSS.4.G.A.2

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two equal sides.

Tags

CCSS.4.G.A.2