Classify Triangles by Sides and Angles

Classify by its angles.

• acute
• equiangular
• right
• obtuse

Tags

CCSS.4.G.A.2

Classify by its angle measures.

• equiangular
• equilateral
• isosceles
• acute

Tags

CCSS.4.G.A.2

Can the sides of a triangle have lengths 3, 8, and 9?

• Yes
• No

Tags

CCSS.7.G.A.2

Can the sides of a triangle have lengths 3, 4, and 9?

• Yes
• No

Tags

CCSS.7.G.A.2

What is a possible third side to a triangle with side lengths of 13 and 4?

• 9
• 12
• 8
• 5

What is the value of x?

• 20
• 60
• 15
• 40

Tags

CCSS.HSG.CO.C.11

Classify the following triangle in as many ways as possible. 

• Isosceles, Acute
• Isosceles, Obtuse
• Scalene, Obtuse
• Equilateral, Acute

Tags

CCSS.4.G.A.2

Which would be the best classification for the triangle shown?

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

Tags

CCSS.4.G.A.2

• equilateral
• isosceles
• scalene

Tags

CCSS.4.G.A.2

• acute
• obtuse
• right
• equiangular

Tags

CCSS.4.G.A.2