90° counterclockwise rotation
Quarterly Review

Flashcard
•
Mathematics
•
8th Grade
•
Hard
Victoria Hannum
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Back
A 90° counterclockwise rotation about the origin changes (x, y) to (-y, x).
2.
FLASHCARD QUESTION
Front
The measure of angle 2
Back
The measure of angle 2 is 104.5°.
3.
FLASHCARD QUESTION
Front
A rectangle with a perimeter of 19 centimeters is translated and rotated in the coordinate plane. What is the perimeter of the resulting image?.
Back
19cm
4.
FLASHCARD QUESTION
Front
What is the definition of a translation?
Back
A transformation which is a "slide"
Move each point same distance same direction
5.
FLASHCARD QUESTION
Front
Effect of translation on perimeter.
Back
Translation does not change the perimeter of a figure.
6.
FLASHCARD QUESTION
Front
Scale factor in dilation.
Back
The ratio of any two corresponding lengths in two similar geometric figures.
7.
FLASHCARD QUESTION
Front
Alternate interior angles.
Back
Angles that are on opposite sides of the transversal and inside the two lines.
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