Identifying and Classifying Triangles

What is the name of a triangle that has all three sides of equal length?

• Equilateral triangle

• Scalene triangle

• Right triangle

• Isosceles triangle

Tags

CCSS.4.G.A.2

How many acute angles does an equilateral triangle have?

• 0

• 2

• 4

• 3

Tags

CCSS.4.G.A.2

What is the name of a triangle that has two sides of equal length?

• Equilateral triangle

• Scalene triangle

• Right-angled triangle

• Isosceles triangle

Tags

CCSS.4.G.A.2

If a triangle has one angle that measures 90 degrees, what type of triangle is it?

• Scalene triangle

• Right-angled triangle

• Isosceles triangle

• Equilateral triangle

Tags

CCSS.4.G.A.2

What is the name of a triangle that has no sides of equal length?

• Equilateral triangle

• Right triangle

• Scalene triangle

• Isosceles triangle

Tags

CCSS.4.G.A.2

How many obtuse angles does an isosceles triangle have?

• 1

• 2

• 0

• 3

Tags

CCSS.8.G.A.5

If a triangle has one angle that measures 120 degrees, what type of triangle is it?

• Right triangle

• Obtuse triangle

• Acute triangle

• Equilateral triangle

Tags

CCSS.4.G.A.2

What is the name of a triangle that has all three angles less than 90 degrees?

• Obtuse triangle

• Acute triangle

• Equilateral triangle

• Right triangle

Tags

CCSS.4.G.A.2

If a triangle has one angle that measures 60 degrees, what type of triangle is it?

• Obtuse triangle

• Right triangle

• Equilateral triangle

• Acute triangle

Tags

CCSS.4.G.A.2

How many right angles does a scalene triangle have?

• 1

• 3

• 0

• 2

Tags

CCSS.4.G.A.2