Congruent Triangles

Congruent Triangles Review

by Michael Jorgenson

Multiple Choice

The sum of the interior angles of a triangle is always

• $$180\degree$$  

• $$90\degree$$  

• less than  $$180\degree$$  

• $$360\degree$$  

Multiple Choice

Find the value of x

• $$180\degree$$  

• $$65\degree$$  

• $$90\degree$$  

• $$45\degree$$  

Multiple Choice

What is the $$m\angle1$$  ?

• $$90\degree$$  

• $$110\degree$$  

• $$70\degree$$  

• $$105\degree$$  

​Exterior Angles

Multiple Choice

The measure of an exterior angle of a triangle is equal to

• $$180\degree$$  

• the sum of all the interior angles

• the sum of the non adjacent interior angles

• $$\left(180-x\right)\degree$$  

Multiple Choice

What is the  $$m\angle2$$  ?

• $$180\degree$$  

• $$139\degree$$  

• $$11\degree$$  

• $$41\degree$$  

Multiple Choice

True or False: These are congruent triangles.

• True

• False

Multiple Choice

True or False: $$\Delta FED\cong\Delta RST$$  

• True

• False

Multiple Choice

True or False:

The order MATTERS when writing our congruency statements.

• True

• False

Multiple Choice

Find the $$m\angle1$$  

• $$125\degree$$  

• $$180\degree$$  

• $$90\degree$$  

• $$55\degree$$  

Multiple Choice

$$\Delta LMN\cong\Delta ZXY$$  

Find the  $$m\angle1$$  

• $$30\degree$$  

• $$40\degree$$  

• $$20\degree$$  

• $$180\degree$$  

Multiple Choice

Find the value of x.

• 115

• 81

• 65

• 55