15 questions
Which must be true of a scale factor of a dilation if the image is smaller that the pre-image?
The scale factor is positive
The scale factor is greater than 1
The scale factor is between 0 and 1
The scale factor is negative
Figure D´E´F´G´ is a dilation with center (0, 0) of figure DEFG. What is the scale factor?
Rectangle ABCD is dilated by a scale factor of 1/2 with the center at B. What are the coordinates of point D?
(6,4)
(3,2)
(4,7)
(12,8)
Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.
AA
SSS
SAS
Not similar
Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.
AA
SSS
SAS
no similar
Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.
SSS
AA
SAS
not similar
Are the triangles similar?
Yes
No
Rajesh is making pennants in preparation for a school soccer game. He wants the pennants to be similar triangles. Which of these triangles could he use for the pennants?
QRS and TVW
QRS and XYZ
TVW and JKL
TVW and XYZ
Find the value of x, and use it to find KM.
x = 10, KM = 25
x = 11, KM = 28
x = 13.3 KM = 34.9
x = 4.3, KM = 8