Introduction to Classifying Triangles

Which type of angle is this?

• Acute
• Right
• Obtuse
• Straight

Tags

CCSS.4.G.A.1

Which type of angle is this?

• Acute
• Right
• Obtuse
• Straight

Tags

CCSS.4.G.A.1

What type of angle is this?

• Acute
• Right
• Obtuse
• Straight

Tags

CCSS.4.G.A.1

Which would be the best classification for the triangle shown?

• acute isosceles
• right scalene
• acute scalene
• obtuse scalene

Tags

CCSS.4.G.A.2

If a triangle has all angles less than 90° and two equal sides, what type of triangle is it?

• Acute Isosceles
• Acute Scalene
• Obtuse Scalene
• Obtuse Isosceles

Tags

CCSS.4.G.A.2

If a triangle has one angle greater than 90° and no equal sides, what type of triangle is it?

• Acute Isosceles
• Acute Scalene
• Obtuse Scalene
• Obtuse Isosceles

Tags

CCSS.4.G.A.2

If a triangle has one angle exactly 90° and two equal sides, what type of triangle is it?

• Right Isosceles
• Acute Scalene
• Obtuse Scalene
• Obtuse Isosceles

Tags

CCSS.4.G.A.2

If a triangle has all three angles equivalent and all three sides equivalent, what type of triangle is it?

• Acute Isosceles
• Equilateral
• Obtuse Scalene
• Obtuse Isosceles

Tags

CCSS.4.G.A.2

If a triangle has no equal sides, what type of triangle is it?

• Scalene
• Equilateral
• Right 
• 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