Geometry Module Test

What is a scale factor?

• How much a shape weighs.

• The numbers that you multiply to build a shape.

• The ratio of length between corresponding sides on similar shapes.

• When a shape is turned around.

Stretching or shrinking a shape

• rotation

• dilation

• translation

• spin

Which describes the red sides of this shape?

• Reflecting sides

• Corresponding sides

• Adjacent sides

• Right sides

Having the same size and shape; ^≅.

• Congruent

• Similar

• Image

• Preimage

An increase in the size of all dimensions in the same proportions.

• Enlargment

• Reduction

• Scale Factor

• Similar

The ratio used to enlarge or reduce similar figures.

• Scale Factor

• Scale Drawing

• Transformation

• Congruent

Determine how to translate triangle A'B'C' to triangle ABC.

• (x+2, y-5)

• (x+2, y-9)

• (x-2, y-9)

Reflect a figure over the y-axis- 

• Change the x-coordinate

• Change the y-coordinate

Are these shapes similar?

• no!

• yes!

Find the length of the side WV.

• 2.38 units

• 2.73 units

• √2 units

• 2.83 units

• 2.37 units