WorksheetsDilation Review
Total questions: 37
Worksheet time: 46mins
In a DILATION, everything about the two shapes/images is congruent (same) except...
size
angles
the type of shape
SCALE FACTOR describes the number that is multiplied by a pre-image that determines...
how many times bigger an image gets
how many times smaller an image gets
how many times bigger or smaller an image gets
Which scale factor below would result in a dilation that is smaller than the pre-image?
0.5
3.5
2
4
A dilation that increases in size will always have a scale factor that is...
negative
exactly 1
greater than 1
less than 1
What scale factor was used in this magnifying glass?
10
5
2.5
2
In this dilation, point A would be considered...
the center of dilation
the scale factor
the center of rotation
the point of no return
Which image was the original/pre-image?
ABCD (blue/larger)
A'B'C'D' (orange/smaller)
Which figure is a scaled copy/ dilation of Shape A?
Shape B
Shape C
Shape D
PQRS is a scaled copy/dilation of ABCD. Which side length on PQRS corresponds to BC?
Side PQ
Side QR
Side RS
Side SP
PQRS is a scaled copy/dilation of ABCD. Wich angle on ABCD corresponds to angle PSR?
Angle BAD
Angle ABC
Angle BCD
Angle ADC
PQRST is a scaled copy/ dilation of ABCDE. What is the scale factor from ABCDE to PQRST?
(a)
Which figures are scaled copies/dilations of shape A?
Shape B
Shape C
Shape D
Is Figure B a scaled copy/dilation of Figure A?
Yes
No
What is the scale factor for the dilation from E to E' with point P being the center of dilation?
21
2
4
41
What is the scale factor of this dilation?
21
2
3
31
2
3/2
2/3
1/2
What is the scale factor from ΔABC to ΔDEF?
2
3/2
2/3
1/2
What is the scale factor from the small fry to the large fry?
1/3
48
4
3
If AB = 3 and the scale factor is 4 then how long is A'B'?
(a)
What is the scale factor?
1
2
1/2
-2
what is the scale factor?
1
3
1/3
8
The point (8, 12) was dilated to become point (2, 3). What is the scale factor?
½
¼
4
2
If the blue polygon is the original image, find the scale factor and determine if it is a reduction or enlargement.
It's a reduction; the scale factor is 2.
It's an enlargement; the scale factor is 2.
It's an enlargement; the scale factor is 1/2.
It's a reduction; the scale factor is 1/2.
A(3,3) B(6,6) C(9,3)
Triangle CAT has coordinates C (4,8) A (6,10) and T ( 6,4) where is A' after a dilation of scale factor of 1/2
(6,10)
(3,2)
(3,5)
(0,0)
How do you write the algebraic notation when the scale factor is 1/2?
(x, y) −> (2x, 2y)
(x, y) −> (1/2x, 1/2y)
(x, y) −> (-2x, -2y)
(x, y) −> (2x, 1/2y)
