Which of the following methods can NOT be used to prove similarity?
AA similarity
SAS similarity
SSS similarity
HL similarity
2. Multiple Choice
30 seconds
1 pt
When two triangles are similar, the corresponding angles are ...
congruent.
doubled.
in proportion.
cut in half.
3. Multiple Choice
30 seconds
1 pt
When triangles are similar, the corresponding sides are ...
congruent.
in proportion.
doubled.
cut in half.
4. Multiple Choice
30 seconds
1 pt
What happens to a figure when it is dilated by a scale factor of r >1?
The image stays the same.
The image gets bigger.
The image gets smaller.
The image goes away.
5. Multiple Choice
30 seconds
1 pt
Find the measure of the exterior angle in the following picture:
50°
60°
110°
180°
6. Multiple Choice
30 seconds
1 pt
In the following diagram, there are parallel lines cut by a transversal. Find the m∠1.
45°
135°
180°
360°
7. Multiple Choice
30 seconds
1 pt
In a triangle, three medians meet at a point called the ...
incenter.
circumcenter.
orthocenter.
centroid.
8. Multiple Choice
30 seconds
1 pt
What is the scale factor that maps point A (8, -12) onto point B (6, -9)?
4/3
3/4
-4/3
-3/4
9. Multiple Choice
30 seconds
1 pt
A median of a triangle is formed when ...
you connect the midpoint of a side to the opposite vertex.
you connect the vertex to the opposite side at a right angle.
you connect the midpoint of one side of the triangle to the midpoint of the other side of the triangle.
you bisect the vertex angle.
10. Multiple Choice
30 seconds
1 pt
The following diagram shows the construction for creating the __________ of a triangle.
angle bisector
median
altitude
perpendicular bisector
11. Multiple Choice
30 seconds
1 pt
The following diagram shows the construction for creating the ___________ of a triangle.
angle bisector
median
altitude
perpendicular bisector
12. Multiple Choice
30 seconds
1 pt
In a parallelogram, opposite angles are ...
congruent.
supplementary.
complementary.
similar.
13. Multiple Choice
30 seconds
1 pt
In a parallelogram, consecutive angles are ...
congruent.
supplementary.
complementary.
similar.
14. Multiple Choice
30 seconds
1 pt
If you reflect a triangle over a line, this is an example of a(n) _____________ isometry.
direct
opposite
rigid
Archibald
15. Multiple Choice
30 seconds
1 pt
Which of the following statements could prove that a parallelogram is a rhombus?
opposite sides are parallel
diagonals are congruent
opposite sides are congruent
diagonals are perpendicular
16. Multiple Choice
30 seconds
1 pt
In ∆ADC, with a reflection over AB, what will AD map onto?
BC
DB
AB
AC
17. Multiple Choice
30 seconds
1 pt
In order to construct the line of reflection between the triangles, you would need to construct the _______________________ of two corresponding points.
angle bisector
perpendicular bisector
parallel lines
equilateral triangle
18. Multiple Choice
30 seconds
1 pt
In order to use CPCTC in a proof, you must first ...
prove the triangles congruent.
state that you have right triangles.
use the reflexive property.
find congruent vertical angles.
19. Multiple Choice
30 seconds
1 pt
Perpendicular lines form ...
right angles.
alternate interior angles.
corresponding angles.
same side interior angles.
20. Multiple Choice
30 seconds
1 pt
Under which transformation will the triangles NOT be congruent?