Lines and Angle Pairs
Similarity
Theorems and Proofs
Transformations
Congruence Postulates
100
What is the relationship between angles 2 and 6?
Corresponding Angles
100
What are the three similarity postulates?
SAS
AA
SSS
100
What theorem tells us that angles 2 and 4 are congruent?Vertical Angle Theorem
100
Which transformation does not preserve congruence?
Dilation
100
Which of the following are not a congruence postulates?
SAS
SSA
AAA
ASA
SAA
AAA and SSA
200
What is the relationship between angles 1 and 7?
Alternate Exterior Angles
200
All right triangles are similar: True or False? Why?
False.
Similar triangles need to have all 3 congruent angles.
200
How do you prove that lines are parallel?
Show that the corresponding angles are congruent.
200
(x,y) to (x-3, y + 5) represents what type of transformation?
Translation
200
These two triangles are congruent by which postulate?SAA
300
What is the relationship between angles 1 and 4?
They are supplementary
300
Solve for x
14.
The scale factor is 1.5
300
What theorem tells us that the interior angles of a triangle add up to 180 degrees?
Triangle Sum Theorem
300
(x,y) to (-x, y) represents what type of transformation? (Be Specific!)
Reflection over the y-axis
300
Why is angle A congruent to angle D?Alternate Interior Angles
400
Which of the angle relationships does NOT tell us that the angles are congruent?
Consecutive Interior Angles
400
Are these triangles similar?
Why or why not?
Yes by AA Similarity Postulate?
400
What is the Isosceles Triangle Theorem?
The base angles of an isosceles triangle are congruent.
400
(x,y) to (4x, 4y) represents what type of transformation? (Be specific!)
Dilation with a scale factor of 4.
400
What congruence postulate tells us these triangles are congruent?SSS
500
Name 6 congruent the angle pairs in this photo.
500
Write a triangle similarity proof for these triangles:
500
What is the Midsegment Theorem?
The midsegment of a triangle is parallel to and half as long as the third side of the triangle.
500
A line segment of length 10 cm is dilated by a scale factor of 1/5. What is the length of the new segment?
2 cm
500
