Constructions and Rigid Transformations

Triangle HAT can be mapped to triangle MAP by a rotation of 180 degrees. Angle PAM is congruent to angle TAH by what angle relationship?

• Vertical angles

• Complementary angles

• Supplementary angles

• Corresponding angles

What transformation will map triangle EAB onto triangle ECD?

• A 180 degree rotation.

• A reflection over the horizontal line through point E.

• A translation by directed line segment ED.

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 270 counterclockwise 

• 90 degrees clockwise

What is the angle of rotation for this counterclockwise rotation about the origin?

• 90°

• 180°

• 270°

• 360°

Identify the transformation from A to D.

• 90^o Clockwise Rotation

• 180^o Rotation

• 270^o  clockwise Rotation

• 360^o Rotation

The blue trapezoid is the image of the green trapezoid. What is the translation rule?

• (x, y) --> (x + 5, y + 2)

• (x, y) --> (x - 5, y - 2)

• (x, y) --> (x + 5, y + 5)

• (x, y) --> (x - 5, y - 5)

Reflect Point C over the y-axis:

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)

Reflect over x-axis. Which point would be at (3, -6)

• A

• B

• C

• H

Triangle GHI is reflected across the x-axis.  What are the coordinates of I'?

• (-2, 6)

• (2, 6)

• (-6, -2)

• (6, 2)

Which one is the correct construction for a perpendicular bisector?

• 1

• 2

• 3

• 4