Classifying Triangles Through Music

What shape is the focus of this part of the geometry series?

• Square

• Circle

• Triangle

• Rectangle

Tags

CCSS.2.G.A.1

CCSS.1.G.A.1

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

• Right triangle

• Equilateral triangle

• Obtuse triangle

• Acute triangle

Tags

CCSS.4.G.A.2

What type of angle makes a triangle a 'right triangle'?

• Less than 90 degrees

• More than 90 degrees

• Exactly 90 degrees

• None of the above

Tags

CCSS.4.G.A.2

Which triangle has one angle greater than 90 degrees?

• Right triangle

• Obtuse triangle

• Acute triangle

• Isosceles triangle

Tags

CCSS.4.G.A.2

What type of triangle has three equal sides?

• Equilateral triangle

• Isosceles triangle

• Right triangle

• Scalene triangle

Tags

CCSS.4.G.A.2

Which triangle has two equal sides?

• Equilateral triangle

• Isosceles triangle

• Scalene triangle

• Obtuse triangle

Tags

CCSS.4.G.A.2

What is the term for a triangle with no equal sides?

• Acute

• Equilateral

• Isosceles

• Scalene

Tags

CCSS.4.G.A.2

Identify the triangle with three equal sides and angles less than 90 degrees.

• Acute isosceles triangle

• Right scalene triangle

• Obtuse isosceles triangle

• Acute equilateral triangle

Tags

CCSS.4.G.A.2

Which triangle has two equal sides and angles less than 90 degrees?

• Obtuse isosceles triangle

• Right equilateral triangle

• Acute isosceles triangle

• Acute scalene triangle

Tags

CCSS.4.G.A.2