Show:
Parallel Lines with a Transveral
Triangle Angle Sum
Exterior Angles of Triangles
Similar or Unique Triangle?
100
Alternate interior angles are ____.
What are congruent?
100
Determine if the following angles form a triangle: 30 degrees, 30 degrees, 120 degrees
What is a triangle?
100
The sum of the exterior angles of a triangle is ___.
What is 360 degrees?
100
A triangle with side measures 3 cm, 6 cm, and 8 cm is a ___ triangle.
What is unique?
200
Consecutive interior angles are ____.
What are supplementary?
200
Determine if the following angles form a triangle: 90 degrees, 40 degrees, 42 degrees
What is not a triangle?
200
Find the exterior angle, 5x - 2, if the two opposite angles in the triangle are 45 degrees and 2x + 1.
What is 78 degrees?
200
Triangle ABC and Triangle DEF both have angle measure of 34 degrees, 50 degrees, and 96 degrees. These triangles are _____ triangles.
What is similar?
300
The sum of the angles around an intersection are equal to ___.
What is 360 degrees?
300
Determine the missing angle measure of the triangle with measures of 41 degrees and 64 degrees.
What is 75 degrees?
300
Find the exterior angle, 7x, if the opposite interior angles are 56 degrees and 4x + 1.
What is 133 degrees?
300
A ____ triangle has no equivalent.
What is unique?
400
Angle A and angle B are corresponding angles. If angle A measures 3x + 5 and angle B measures 4x, the measure of angle A is ___.
What is 20 degrees?
400
Triangle ABC has angle measures of 3x, 2x + 1, and 49, determine the value of x.
What is 26?
400
An exterior angle of a triangle is _____ to its adjacent angle.
What is supplementary?
400

What is the definition of similar triangles?

What is a triangle that has the same shape but different sizes.

500
Angle C and angle D are vertical angles. If angle C is 12x - 5 and angle D is 4x + 11, the the value of x is ___.
What is 2?
500
Triangle DEF has the following angle measure: angle D = 5x + 2, angle E = 15, and angle F = 75 - x. Find the measure of angle D.
What is 112 degrees?
500

How are interior and exterior angles of a triangle related?

An exterior angle of a triangle is equal to the sum of the two opposite interior angles. The sum of exterior angle and interior angle is equal to 180 degrees.

500
True or False: Similar triangles are the same size.
What is false?