Triangle Sum- class 4

What is the angle sum of a triangle?

• $180\degree$
  

• $90\degree$
  

• $360\degree$
  

• $270\degree$
  

What are the three angles in an equilateral triangle equal to?

• $30\degree,\ 60\degree,\ 90\degree$
  

• $45\degree,\ 45\degree,\ 90\degree$
  

• $60\degree,\ 60\degree,\ 60\degree$
  

• $35\degree,\ 55\degree,\ 90\degree$
  

What is the size of the missing angle?

• $139\degree$

• $66\degree$
  

• $138\degree$
  

• $116\degree$
  

Find the size of the missing angle.

• $82\degree$
  

• $43\degree$
  

• $55\degree$
  

• $180\degree$
  

What is the size of the missing angle?

• $95\degree$

• $85\degree$
  

• $35\degree$
  

• $45\degree$