Classifying Triangles

Identify this triangle by its sides

• Right

• Scalene

• Isosceles

• Equilateral

Tags

CCSS.4.G.A.2

An isosceles triangle has how many congruent sides?

• 1

• 2

• 3

Tags

CCSS.2.G.A.1

A right triangle can not be equilateral

• True

• False

Tags

CCSS.4.G.A.2

A triangle has angle measurements of 27°, 72°, and 81°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

Tags

CCSS.4.G.A.2

What kind of triangle is this?

• Acute

• Right

• Sparkly

• Obtuse

Tags

CCSS.4.G.A.2

How many acute angles must an acute triangle have?

• 2

• 1

• 4

• 3

Tags

CCSS.4.G.A.2

A triangle has angle measurements of 163°, 2°, and 15°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

Tags

CCSS.4.G.A.2

A triangle has two 71° angles and one 38° angle. Is this triangle isosceles?

• yes 

• no

Tags

CCSS.2.G.A.1

• yes
• no

Tags

CCSS.2.G.A.1

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle

• Scalene Triangle

• Isosceles Triangle

• Right Triangle

Tags

CCSS.2.G.A.1