Triangle Vocabulary

• Equilateral Triangle 
• Right Triangle 
• Isosceles Triangle 
• Scalene Triangle 

Tags

CCSS.4.G.A.2

1 angle is 90 degrees

• Acute Triangle 
• Scalene Triangle
• Obtuse Triangle 
• Right Triangle 

Tags

CCSS.4.G.A.2

• Isosceles Triangle 
• Right Triangle 
• Equilateral Triangle  
• Scalene Triangle 

Tags

CCSS.4.G.A.2

Triangle 

• A four sided figure.
• a plane figure with three straight sides and three angles.
• An angle that is less than 90 degrees. 
• A shape that has 5 equal sides. 

Tags

CCSS.4.G.A.2

CCSS.4.G.A.1

• Scalene Triangle 
• Equilateral Triangle  
• Obtuse Triangle 
• Isosceles Triangle 

Tags

CCSS.4.G.A.2

CCSS.4.G.A.1

Isosceles Triangle

• All 3 angles measure less than 90 degrees.
• 2 sides that are equal; 2 equal angles.
• No sides are equal; no equal angles
• 1 angle measures more than 90 degrees

Tags

CCSS.HSG.CO.C.10

All 3 angles measure less than 90 degrees. 

• Acute Triangle 
• Right Triangle 
• Equilateral Triangle 
• Obtuse Triangle 

Tags

CCSS.HSG.CO.C.10

• Right Triangle 
• : )
• Acute Triangle 
• Obtuse Triangle 

Tags

CCSS.4.G.A.2

CCSS.4.G.A.1

1 angle measures more than 90 degrees

• Obtuse Triangle 
• Isosceles Triangle
• Scalene Triangle
• Acute Triangle 

• Obtuse Triangle 
• Acute Triangle 
• : )
• Right Triangle 

Tags

CCSS.HSG.CO.C.10

CCSS.HSF.TF.A.3