Geometry Unit Review Transformations

Reflect (3,5) over the x-axis.

• (2,2)

• (3,-5)

• (-3,-5)

• (-3,5)

Which transformation will result in being similar to the original figure but has a larger area?

• Dilation with scale factor of 2
• Dilation with scale factor of 1
• Dilation with scale factor of .5
• Translation 

A triangle is dilated by a scale factor of ⅓ to produce a new triangle. Which of the following best describes the relationship between the perimeter of the original triangle compared to the perimeter of the new triangle?

• The perimeter of the new triangle is ⅓ that of the original triangle
• The perimeter of the new triangle is 3 times that of the original triangle.
• The perimeter of the new triangle is 1/9 that of the original triangle.
• The perimeter of the new triangle is 9 times that of the original triangle

When you translate, (x,y+6) will move _____.

• 6 units right

• 6 units left

• 6 units up

• 6 units down

Write a rule for the translation.

• (x -1, y + 2)

• (x -2, y + 1)

• (x +2, y - 1)

• (x +1, y - 2)

Identify the transformation from ABC to A'B'C'.

• 90^o clockwise rotation
• 90^o counter clockwise rotation
• Reflection across the y-axis
• Reflection across the x-axis

A square with an area of 16 square inches has been dilated to a square with an area of 64 square inches. What is the scale factor of the dilation?

• k = 1/2

• k = 1/4

• k = 2

• k = 4

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)

Describe the transformation.

• 90º counterclockwise rotation

• 180º counterclockwise rotation

• 90º clockwise rotation

• reflection across the origin

Choose ALL the degrees of rotation that will map a regular hexagon onto itself.

• 90

• 120

• 150

• 240

• 300