Trapezoid ABCD was rotated 90° counterclockwise about the origin to create trapezoid A'B'C'D'. Will the new image have a different shape or size from the original? Justify your answer. (Write in complete sentences)
Question 4
4.
Translate triangle ABC using the following rule, (x-3, y+1).
Question 5
5.
Reflect triangle ABC over the x-axis and label the corresponding vertices.
Question 6
6.
10
8.10.C
10
8.10.A
Question 9
9.
Question 10
10.
What is the algebraic rule for rotating a figure 90° counter clockwise?
Which of the following transformations preserve congruence?
Translations
Reflections
Rotations
Dilations
Triangle ABC is reflected over the y-axis to form triangle DEF. Which statement is true?
The area of triangle ABC is greater than the area of triangle DEF.
The angle measures of triangle ABC are less than the angle measures of triangle DEF.
The sum of the angle measures of triangle DEF is twice the amount of the angle measures of triangle ABC.
The side lengths of triangle ABC are congruent to the corresponding side lengths of triangle DEF.
Square ABCD is reflected over the y-axis to create square A'B'C'D'. Which rule best describes this reflection?
(x+4, y-3)
(-x, y)
(x, -y)
(-x, -y)
Question 7
7.
Question 8
8.
A transformation is applied to a new figure. Which transformation does NOT preserve congruence?
