Study Island
Copyright © 2014 Edmentum - All rights reserved.
Generation Date: 12/11/2014
Generated By: Cheryl Shelton
Title: Grade 8 Blizzard Bag 2014-2015 Math-Day 5
1. Which series of transformations shows that triangle A is congruent to triangle B?
A. Reflect triangle A over the y-axis and translate it 2 units up.
Reflect triangle A over the y-axis, translate it 5 units to the right, and rotate it 90°
B. counterclockwise about the origin.
Reflect triangle A over the y-axis, rotate it 90° counterclockwise about the origin, and
C. translate it 5 units to the right.
Reflect triangle A over the x-axis, translate it 4 units to the right, and reflect it over the yD. axis.
2.
Note: Figure is not drawn to scale.
Lines MN and GH are parallel. If m T is 134°, then what is m X?
A. 139°
B. 314°
C. 46°
D. 134°
3. Triangle RST has the coordinates R (-2, 2), S (1, 9), and T (4, 2). Which of the following sets of
points represents a dilation from the origin of triangle RST?
A. R' (4, 8), S' (7, 15), T' (10, 8)
B. R' (-12, 2), S' (1, 54), T' (24, 2)
C. R' (-12, 2), S' (6, 9), T' (24, 2)
D. R' (-12, 12), S' (6, 54), T' (24, 12)
4. In the figure below, the triangle is an isosceles triangle, where W and X are congruent.
Note: Figure is not drawn to scale.
If m W is 56°, what is m Z?
A. 34°
B. 112°
C. 68°
D. 124°
5.
Note: Figure is not drawn to scale.
Lines MN and GH are parallel. If m V is 41°, then what is m W?
A. 49°
B. 41°
C. 131°
D. 139°
6.
Note: Figure is not drawn to scale.
Lines MN and GH are parallel. If m R is 144°, then what is m Z?
A. 126°
B. 36°
C. 114°
D. 144°
7. Figure B is a reflection of Figure A.
Which of the following is true?
A. The two figures are congruent.
B. Figure B is a dilation.
C. Figure A is a translation.
D. The two figures are similar but not congruent.
8. In the diagram below, Figure B is a dilation of Figure A.
Which of the following is true?
A. Figure A is a translation of Figure B.
B. The two figures are similar.
C. The two figures are congruent.
D. Figure B is a reduction of Figure A.
9.
The translation above shows an object moving ______________.
A. 5 units to the right and 7 units down
B. 7 units to the left and 5 units up
C. 7 units to the right and 5 units down
D. 5 units to the left and 7 units up
10.
Which of the following describes the transformations performed on the object shown above?
The object was reflected across the y-axis and shifted -2 units in the x direction and -6
A. units in the y direction.
The object was reflected across the y-axis and shifted 1 unit in the x direction and 5 units
B. in the y direction.
The object was reflected across the x-axis and shifted 5 units in the x direction and 1 unit
C. in the y direction.
The object was reflected across the x-axis and shifted -6 units in the x direction and -2
D. units in the y direction.
11.
The translation above shows an object moving ______________.
A. 6 units to the left and 6 units down
B. 7 units to the left and 7 units down
C. 6 units to the right and 6 units up
D. 7 units to the right and 7 units up
12.
Note: Figure is not drawn to scale.
If m 1 = 31° and m 2 = 16°, what is m 3?
A. 164°
B. 118°
C. 133°
D. 149°
13.
Triangle ABC has coordinates A (-1, 1), B (1, 1), and C (0, -1). Triangle XYZ will be a dilation of
triangle ABC with a scale factor of 3.
At what coordinates should point X, of triangle XYZ, be plotted?
A. (-3, 3)
B. (-1, 3)
C. (-3, 1)
D. (3, -3)