Dilations, Similarity, Angles
Mathematics
9th - 11th Grade
Used 3+ times
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27 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
ΔABC is has a center of dilation at (2,1). Which of the following is the correct coordinate of B' after a dilation of 2?
(0, -1)
(1, 0.5)
(2, 1)
(-1, 0)
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)
A'(9,9) B'(18,18) C'(27,9)
A'(6,6) B'(9,9) C'(12,6)
A'(0,0) B'(3,3) C'(6,0)
A'(1,1) B'(2,2) C'(3,1)
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.
reduction
enlargement
scale factor
center of dilation
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A dilation can produce a smaller figure also known as a ______
reduction
enlargement
scale factor
center of dilation
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A dilation can produce a larger figure also known as a ______
reduction
enlargement
scale factor
center of dilation
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Which of the following are Dilations?
(x, y) → (x, 3y)
(x, y) → (3x, 3y)
(x, y) → (x, y - 3)
(x, y) → (.5x, .4y)
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Mrs. Martinez has a picture that measures 3 inches by 3 inches. If she decides to enlarge the picture by a scale factor of 2.5, what would be the length of each side of the dilated picture?
75 inches
7.5 inches
5.5 inches
4 inches
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