Classifying Triangles

What kind of triangle is this?

• acute

• right

• obtuse

• 360 degrees

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

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

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Tags

CCSS.4.G.A.2

Label the three triangles

a

b

c

Scalene Triangle

Equilateral Triangle

Isosceles Triangle

Tags

CCSS.4.G.A.2

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• Isosceles

• Acute

• Right

• Obtuse

• Equilateral

• Scalene

Tags

CCSS.4.G.A.2

Classify this triangle.

b

right isosceles

obtuse scalene

right scalene

acute isosceles

acute equilateral

Tags

CCSS.4.G.A.2

Classify the following triangle​ .​ ​ ​ ​ ​ ​ ​ ​ ​ ​​ ​ (a)   ​ (b)   ​ (c)   ​

• right triangle

• acute triangle

• obtuse triangle

Tags

CCSS.4.G.A.2

Classify this triangle.

e

right scalene

acute equilateral

acute scalene

acute isosceles

right isosceles

Tags

CCSS.4.G.A.2

Which triangle is classified as scalene and obtuse?

Tags

CCSS.4.G.A.2

Side Classification: ​ (a)   Angle Classification: ​ (b)  

• isosceles

• right

• scalene

• obtuse

• equilateral

• acute

Tags

CCSS.4.G.A.2