Translations
Reflections
Rotations
Similar Figures
Word Problems
100
A translation is when you do this to a figure.
What is move it right, left, up, or down?
100
A reflection is when you do this to a figure.
What is flip it or make a mirror image of it?
100
A rotation is when you do this to a figure.
What is spin it?
100
What are corresponding angles?
Matching angles on similar figures
100
A student's rectangular desk is 30 inches long and 18 inches wide. The teacher's rectangular desk is 60 inches long and 36 inches wide. Are the desks similar? If no, why not? and if yes, what is the proportion?
Yes; 1:2
200
Find the new coordinates of (10,12) if you translate the point three units left and 4 units up.
What is (7,16)?
200
Find the new coordinates of (3,-2) after you reflect the point over the x-axis.
What is (-3,-2)?
200
Find the new coordinates of (5,4) after you rotate the point with 180º.
What is (4,5)?
200
These trapezoids are similar. Find the ratio of the perimeters and areas.
What is 4:5 and 16:25
200
The playing surfaces of two foosball tables are similar. The ratio of the corresponding side lengths is 10:7. What is the ratio of the areas?
100 : 49
300
Write the notation of point (x,y) after it moves 3 spots to the left and 7 spots up.
What is (x-3,y+7)?
300
Write the notation of point (x,y) after it is reflected over the y-axis.
What is (-x,y)?
300
A figure lies entirely in quadrant II. In which quadrant will the figure lie after rotating 90 degrees clockwise about the origin?
Quadrant I
300
The base of Triangle P is 8 meters. The base of a similar Triangle Q is 7 meters. What is the ratio of the area of P to the area of Q?
64:49
300
The ratio of the corresponding side lengths of two similar computer screens is 13:15. The perimeter of the smaller screen is 39 inches. What is the perimeter of the larger screen?
45 in
400
Describe the translation for this notation: (x,y) --> (x + 8, y + 4)
What is a translation of 8 units to the right and 4 units up?
400
A picture with one point (-3,4) was reflected over the line y=x. What should be the new coordinates of the point?
What is (4,-3)?
400
Figure QRST has vertices Q(2,-1), R (6,-1), S(6,-3) and T(2,-3). What are the coordinates of vertex R after the rectangle is rotated 90º counterclockwise about the origin?
What is (1,6)?
400
What is (C) 12 cm?
400
A rectangular school banner has a length of 44 inches and a perimeter of 156 inches. The cheerleaders make signs similar to the banner. The length of a sign is 11 inches. What is its perimeter?
39 in
500
Graph ∆LMN after a translation of 6 units to the right and 4 units down. L(0,3) M(6,4) N(3,9)
What is L'(6,-1), M'(12,0), N'(9,5)?
500
Graph rectangle DEFG after a reflection over the line y=x. D(5,5) E(5,8) F(8,8) G(8,5)
What is D'(5,5), E'(8,5), F'(8,8), G'(5,8)?
500
Graph ∆JKL after a rotation of 180º about the origin. J(5,6) K(7,9) L (1,2)
What is J(-5,-6), L(-7,-9), L(-1,-2)?
500
Explain how you can tell whether figures are similar or not.
The lengths of the corresponding sides must be proportional and the corresponding angles must be congruent.
500
A triangle is rotated 90 degrees counterclockwise about the origin. Its image is translated 1 unit left and 2 units down. The vertices of the final triangle are (-5, 0), (-2, 2), and (-2, -1). What are the vertices of the original triangle?
(2,4), (4,1), (1,1)