Classifying Triangles Through Music

The video tutorial explains the basic properties of triangles, including their three sides and the sum of interior angles being 180 degrees. It discusses how triangles can be classified by their sides as scalene, equilateral, or isosceles, and by their angles as acute, right, or obtuse. The tutorial emphasizes understanding these classifications to identify triangle types based on given properties.

How many sides does a triangle have?

• Five

• Six

• Four

• Three

Tags

CCSS.2.G.A.1

What is the total sum of the angles inside a triangle?

• 270 degrees

• 180 degrees

• 360 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

What type of triangle has all sides of equal length?

• Equilateral

• Acute

• Scalene

• Isosceles

Tags

CCSS.4.G.A.2

How many equal sides does an equilateral triangle have?

• None

• Two

• Three

• One

Tags

CCSS.4.G.A.2

Which triangle has no equal sides?

• Obtuse

• Equilateral

• Isosceles

• Scalene

Tags

CCSS.4.G.A.2

What is a triangle called if it has at least two equal sides?

• Acute

• Isosceles

• Scalene

• Equilateral

Tags

CCSS.4.G.A.2

If a triangle has an angle greater than 90 degrees, what is it called?

• Equilateral

• Right

• Acute

• Obtuse

Tags

CCSS.4.G.A.2

What type of angle does a right triangle have?

• Exactly 90 degrees

• Less than 90 degrees

• Greater than 90 degrees

• Exactly 180 degrees

Tags

CCSS.4.G.A.2

Which triangle has two angles less than 89 degrees?

• Obtuse

• Equilateral

• Acute

• Right

Tags

CCSS.4.G.A.2

Which statement is true for all triangles?

• They have angles that add up to 360 degrees.

• They are a part of the polygon family.

• They always have one right angle.

• They have sides of equal length.

Tags

CCSS.2.G.A.1