AnswersOH-Geometry AUnit Test

Unit Test — Unit test Answers

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A composition of transformations maps pre-image EFGH to final image E"F"G"H".

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A
a 180° rotation about point G
B
a 180° rotation about point H
C
a translation down and to the left
D
a translation up and to the right
22
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On a coordinate plane, 5 parallelograms are shown. Parallelogram L M N P has points (3, 1), (4, 1), (4, 3), and (5, 3). Figure D is reflected across the x-axis. Figure B is reflected across the y-axis. Figure C is rotated in the first quadrant. Figure A is rotated in the third quadrant.

Question illustration
A
figure A
B
figure B
C
figure C
D
figure D
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Pentagon A B C D E is reflected across the line of reflection m to pentagon A prime B prime C prime D prime E prime. Pentagon A prime B prime C prime D prime E prime is rotated about point C prime 180 degrees clockwise.

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A
90 degree rotation about point C prime composition reflected across line m
Option A
B
Reflected across line m composition 90 degree rotation about point C prime
Option B
C
180 degree rotation about point C prime composition reflected across line m
Option C
D
Reflected across line m composition 180 degree rotation about point C prime
Option D
24

All side lengths in quadrilateral PQRS measure 4 units. A transformation maps PQRS to P'Q'R'S'. All sides of P'Q'R'S' measure 1 unit.

A
Yes, the side lengths in the two figures are proportional.
B
Yes, one figure maps to the other.
C
No, the side lengths are not preserved.
D
No, the angles are not preserved.
25

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