Common Assessment 1 Study Guide

Identify all the angles that are congruent by color coding corresponding angles.

Answer explanation

Corresponding angles are on the same spot on the image!

Match the following

• Rotation

• Congruent figure orientation is the same

• Same shape and size

• Orientation

• Position of vertices (ABC)

• Congruent figure, orientation is not the same

• Translation

• Congruent

The quadrilateral is a 180 degree rotation. Which statement is true?

• The corresponding side lengths are double.

• The corresponding angles are equal

• The corresponding side lengths are 1/2 smaller

• The corresponding angles are larger.

Match the following using what you know about translation rules

• (x,y) -> (x-3,y+8)

• Right 2 units,

  3 up

• (x,y) -> (x+2,y+3)

• 8 units down

• (x,y) --> (x-4,)

• 3 units left

  8 up

• (x,y) -> (x,y-8)

• Left 4 units

What is the algebraic representation for a translation 4 units right and 2 units down?

• (x,y) --> (x,-y)

• (x,y) --> (x-2,y+4)

• (x,y) --> (x+4,y-2)

• (x,y) --> (x+2,y-4)

Match the following using the ordered pair A (5, 2)

• A'(6, -3)

• (x,y) -> (x-4,y+5)

• A' (2, -5)

• (x,y) -> (y,-x)

• A'( 1, 7)

• (x,y) -> (x+2,y+3)

• A'( 7, 5)

• (x,y) -> (x+1,y-5)

Match the following

• (x,y) -> (-x,y)

• Rotation 90 degrees CW

• (x,y) -> (y,-x)

• Reflection across the x-axis

• (x,y) -> (-y,x)

• Reflection across the y-axis

• (x,y) -> (x, y-4)

• Translation down 4

• (x,y) -> (x, -y)

• Rotation 90 degrees CCW