Properties of Triangles

Two angles of a triangle have measures of 30° and 45°. What is the measure of the remaining angle?

Tags

CCSS.8.G.A.5

An exterior angle of a triangle has a measure of 80°, and one of the remote interior angles has a measure of 20°. Write and solve an equation to find the measure of the other remote interior angle.

Tags

CCSS.8.G.A.5

Find the value of x in the diagram. Explain how you found the answer.

Tags

CCSS.8.G.A.5

Complete the table by entering the measures of the unknown angles for the following two triangles.

Tags

CCSS.8.G.A.5

Challenge:  Find the measure of the indicated angle. 

• 145 degrees
• 24 degrees
• 20 degrees 
• 21 degrees

Tags

CCSS.7.G.B.5

Find the measure of the indicated angle. 

• 87 degrees
• 82 degrees
• 83 degrees
• 72 degrees

Tags

CCSS.8.G.A.5

How many degrees are in a right angle?

• 
  

  $30\degree$

• $90\degree$

• $60\degree$

• Not enough information

Tags

CCSS.4.G.A.1