Types of Triangles

Front

What is an acute triangle?

Back

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

Tags

CCSS.4.G.A.2

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

What is a right triangle?

Back

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

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are equal in length and all three angles are equal to 60 degrees.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths and all three angles are different.

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

Can a triangle have more than one obtuse angle?

Back

No, a triangle cannot have more than one obtuse angle because the sum of all angles in a triangle is always 180 degrees.

Tags

CCSS.4.G.A.2

Front

What type of triangle has all angles less than 90 degrees?

Back

An acute triangle.

Tags

CCSS.4.G.A.2

Front

What type of triangle has one angle equal to 90 degrees?

Back

A right triangle.

Tags

CCSS.4.G.A.2

Front

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

Back

An obtuse triangle.

Tags

CCSS.4.G.A.2