Lines and Triangles

• line segment

• line

• ray

• angle

A sign is in the shape of an acute triangle. Which of the following could be the shape of the sign?

• 
• 
• 
• 

• right angle

• straight angle

• acute angle

• obtuse angle

The height of this triangle is twice its width. How tall is this triangle?

• 6 cm

• 36 cm

• 20 cm

• 12 cm

Which words best describe this triangle?

• Right

• Acute

• Obtuse

• Isosceles

• Scalene

Which statement is true about group A?

• The triangles are all equilateral.

• The triangles are all acute triangles.

• The triangles are all scalene.

• The triangles are all obtuse triangles.

• Triangle Side

• Triangle Vertex

• Triangle Vertex

• Triangle Side