Dilations
Dilate Triangle ABC from the origin with a scale factor of 3. A(1,1), B(1,3), C(3,1)
What is A'(3, 3), B'(3, 9), C'(9, 3)?
Find the change in y of a slope triangle with an angle of 35 degrees and a change in x of 6
4.2
False
Name three triangle similarity conditions.
SSS AA and SAS
Who won the high school girls Suburban League Cross Country Championships?
Revere
A(-2,-2), B(-1,2), C(2,1); scale factor of 2 from the origin.
What is A'(-4, -4), B'(-2, 4), C'(4, 2)?
Find the change in y of a slope triangle with an angle of 42.5 degrees and a change in x of 11.
10.08
Find x if 3x -37 is alternate interior to an angle with a measure of 23.
x = 10
How do you determine triangles to be congruent using what we know about similarity?
Show that they are similar with a scale factor of 1.
What Team Does Ohio State Play this Weekend?
A(-4,6), B(2,6), C(0,8); scale factor of 1/2.
What is A'(-2, 3), B'(1, 3), C'(0, 4)?
Find the length of delta x if the slope angle is 68 degrees and the change in y is 3.
1.21
What is true about the angle of incidence compared to the angle of reflection, and what angle relationship did we use to justify this?
They are equal. Vertical Angles.
If two triangles have one angle pair with equal measure and 2 sets of corresponding sides enlarged by a common scale factor, are they similar?
Maybe
What team does Revere High School Football play this weekend?
Kent Roosevelt
A(-3,-2), B(1,2), C(2,-3); scale factor of 1.5, Dilation point is (2,1).
What is A'(-2.5, -2), B'(3.5, 4), C'(5, -3.5)?
Without using a calculator, is it possible for the slope angle of a triangle with a change in y of 50 and a change in x of 30 to be 38 degrees?
NO. Must be greater than 45.
If the measure of the supplement to an angle alternate interior to angle A has a measure of x + 33, what is the measure of angle A in terms of x?
147 - x?
Triangle ABC is similar to Triangle ZBQ. If the AB is 4 units, CA is 13 units, and ZB is 2, what is the length of BQ?
Not possible.
Who did the high school girls soccer team beat last night in overtime?
Westlake
How do you find the point of dilation if you are given the original image and dilated image but they are not on the coordinate plane?
Draw Lines connecting the vertices of each shape. Dilation point is the point of intersection.
Find the length of the hypotenuse of a slope triangle with a change of x = 15 and a slope angle of 22 degrees.
~16.17
Name 5 types of angle relationships we have studied.
Corresponding, Same Side Interior, Alternate Interior, Vertical, Supplementary, Complementary
Explain why SSA is not a valid similarity condition.
2 possible triangles can be created under those conditions.
What is the current average percentage for a student in geometry?
94.8%