Determine the Value of your Variables with Congruent Triangles

The video tutorial explains how to identify congruent triangles by separating them and analyzing their angles. It introduces the third angle theorem to find unknown angle measures and demonstrates solving for unknown side lengths using congruence. The tutorial emphasizes understanding congruent angles and sides to solve geometric problems effectively.

What is the first step recommended when dealing with congruent triangles?

• Combine them into one diagram

• Focus only on angles

• Separate and rewrite them

• Ignore the congruence

According to the third angle theorem, if two angles in a triangle are known, what can be determined?

• The measure of the third angle

• The type of triangle

• The length of the longest side

• The perimeter of the triangle

If angle R is congruent to angle T and angle R measures 12 degrees, what is the measure of angle T?

• 78 degrees

• 90 degrees

• 12 degrees

• 24 degrees

What is the value of X if angle R is congruent to angle T and angle R is 12 degrees?

• 90

• 12

• 78

• 24

How is the side length Rs related to TV if Rs is 2Y - 1 and TV is 24?

• Rs is half of TV

• Rs is equal to TV

• Rs is twice TV

• Rs is unrelated to TV