Scale Factor/similar figures
Vocabulary
Dilations
Coordinate Rules
Mixed Review
100
The value of x
What is 9 cm?
100
A transformation which creates a similar shape by enlarging or reducing the size of the shape from a fixed point.
What is a dilation?
100
Describe the dilation.
Quadrilateral ABCD was dilated by a scale factor of 1/2, centered at the origin.
100
Apply the rule (3x, 3y) to the coordinate (-4, 6)
What is (-12, 18)
100
Find the value of x.
-1.7x + 4.3 = -12.7
x = 10
200
The scale factor from Triangle P to Triangle S.
What is 1.5?
What is 3/2?
200
The ratio of corresponding sides on two similar figures.
What is scale factor?
200
Describe the dilation.
Triangle PQR was dilated by a scale factor of 3, centered at the origin.
200
What rule was applied to the coordinates:
(6, 5) ---->(24, 20)
What is (4x, 4y)?
200
Find the value of h.
15 = 18 - h/5
h = 15
300
What is the scale factor from Triangle S to Triangle P?
What is 2/3?
300
The point from which corresponding points on a figure are dilated.
What is center of dilation?
300
Describe the dilation from triangle ABC to the blue/green triangle.
Triangle ABC was dilated by a scale factor of 2, centered at point A.
300
Apply the rule (3/4x, 3/4y) to the coordinate (-12, 16)
What is (-9, 12)?
300
80 is 20% of what number?
What is 400?
400
What is 3/4?
400
Lines that connect the corresponding points to the center of dilation.
What are projection lines?
400
Describe the dilation from triangle ABC to the blue/purple triangle.
Triangle ABC was dilated by a scale factor of 3, centered at point B.
400
Apply the rule (2/3x. 2/3y) to the coordinate:
(-21, -15)
What is (-14, 10)?
400
What percent is 30 of 50?
What is 60%?
500
Triangles ABC and DEF are similar. Find the values of b and d
b = 15
d = 12
500
This type of relationship shows that two variables have an equivalent ratio or creates a similar figure.
What is proportional?
500
Describe a set of transformations from PQRS to TUVW
PQRS was dilated by a scale factor of 1/3, centered at the origin, and then reflected over the y-axis. Or done in the opposite order--reflected then dilated.
500
What would be the new coordinate of the point (-4, 8) after a reflection over the y-axis and then applying the rule (1/4x, 1/4y)?
What is (1, 2)?
500
The horizontal lines are parallel. What is the value of x?
What is 45 degrees?