Acute, Right or Obtuse Triangles

Classify this triangle by its sides and angles.

• acute

• obtuse

• isosceles

• equilateral

Tags

CCSS.4.G.A.2

Correct the error in classifying this triangle

• It is acute and isosceles

• It is obtuse and isosceles

• It is right and scalene

• It is obtuse and scalene

Tags

CCSS.4.G.A.2

A mosaic is pattern or picture made of small pieces of colored material. Classify the yellow triangle used in the mosaic.

• Equilateral Acute Triangle

• Isosceles Acute Triangle

• Scalene Acute Triangle

• Isosceles Obtuse Triangle

Tags

CCSS.4.G.A.2

Classify this triangle by its sides and angles.

• obtuse & isosceles

• obtuse & equilateral

• right & isosceles

• right & equilateral

Tags

CCSS.4.G.A.2

Classify this triangle by its sides and angles.

• right

• obtuse

• isosceles

• scalene

Tags

CCSS.4.G.A.2

Classify this triangle by its sides and angles.

A triangle has angle measurements of 20°, 140°, and 20°

• acute

• obtuse

• isosceles

• equilateral

Tags

CCSS.4.G.A.2

Which angle type is pictured?

• Acute

• Right

• Obtuse

• Straight

Tags

CCSS.4.G.A.1

Classify this triangle by its angles

• Acute

• Right

• Obtuse

Tags

CCSS.4.G.A.2

What type of angle is shown?

• acute

• obtuse

• right

• straight

Tags

CCSS.4.G.A.1

Classify this triangle by its angles

• Acute

• Right

• Obtuse

Tags

CCSS.4.G.A.2