Acute, Right, and Obtuse Triangles

Acute triangles are triangles with only acute angles inside.

Select ALL the acute triangles below.

(There are 2 correct answers)

• 
• 
• 
• 

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Acute triangles are triangles with only acute angles inside.

Select all the acute triangles below:

• 
• 
• 
• 

Tags

CCSS.4.G.A.1

What type of triangle is shown?

• acute

• obtuse

• right

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

How many sides of an Equilateral Triangle are equal in length?

• 0

• 1

• 2

• 3

Tags

CCSS.7.G.A.2

Identify the triangle by its sides and angles

• Right Isosceles

• Right Scalene

• Obtuse Isosceles

• Obtuse Scalene

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Identify the triangle by its sides and angles

• Equilateral

• Obtuse Equilateral

• Acute Equilateral

• Acute Isosceles

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

In an ______________ triangle, all three angles are less than 90 degrees.

• acute

• right

• obtuse

• 360 degrees

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

What type of triangle is this?

• Equilateral

• Isosceles

• Right angled

• Obtuse

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Which type of angle is pictured?

• Acute
• Right
• Obtuse
• Straight

Tags

CCSS.4.G.A.1

What type of triangle is shown?

• acute

• obtuse

• right

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2