Classifying Triangles

An acute triangle has __________ angles that each measure less than 90°.

• one

• two

• three

• four

Tags

CCSS.4.G.A.2

An isosceles triangle has _________ equal sides.

• one

• two

• three

• four

Tags

CCSS.4.G.A.2

A right triangle has one angle that measures _______ and two acute angles.

• 90°

• less than 90°

• more than 90°

• 180°

Tags

CCSS.7.G.B.5

Identify the triangle by its sides and angles

• Right Isosceles

• Right Scalene

• Right Equilateral

Tags

CCSS.4.G.A.2

Identify the triangle by its sides and angles.

• Obtuse Equilateral

• Obtuse Isosceles

• Isosceles

• Acute Scalene

Tags

CCSS.4.G.A.2

Which of the following is NOT a term to classify triangles by their angles?

• acute

• equilateral

• obtuse

• right

Tags

CCSS.4.G.A.2

If all of the triangle side are different lengths, the triangle is an isosceles triangle.

• True

• False

Tags

CCSS.4.G.A.2

What is the correct term if the triangle has one 90 degree angle?

• scalene

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2

Look at the sides of this triangle. What type of triangle is this?

• Equilateral
• Isosceles
• Scalene
• Obtuse

Tags

CCSS.4.G.A.2

Look at the sides of this triangle. What type of triangle is this?

• scalene
• acute
• equilateral
• isosceles

Tags

CCSS.4.G.A.2