OpenUp 8th Math 1.11 Practice Problems and Vocab

One figure is ___ to another if it can be moved with translations, rotations, and reflections to fit exactly over the other.

In the figure, Triangle A is ____ to Triangles B, C, and D. A translation takes Triangle A to Triangle B, a rotation takes Triangle B to Triangle C, and a reflection takes Triangle C to Triangle D.

True or False: If two rectangles have the same perimeter, they must be congruent

• true

• false

Which of the following pairs of rectangles could be non-congruent with the same area? Select all that apply

• 2 by 6

  3 by 4

• 3 by 4

  4 by 3

• 8 by 2

  4 by 4

• 2 by 10

  4 by 4

Congruent or Non-congruent

• congruent

• non-congruent

Congruent or Non-congruent

• congruent

• non-congruent

Reflect Quadrilateral A over the x-axis. Label the image quadrilateral B. Reflect Quadrilateral B over the y-axis. Label the image C.

True or False: Quadrilaterals A and C are congruent

• true

• false

The point (-2, -3) is rotated 90 degrees counterclockwise using center (0, 0). What are the coordinates of the image?

• (-3, -2)

• (-3, 2)

• (3, -2)

• (3, 2)

Describe a rigid transformation that takes Polygon A to Polygon B.