Dilations of Shapes

A triangle has vertices A(0,0), B(8,0), C(3,-2). Find the coordinates of the triangle after a dilation with a scale factor of 4.

• A(3,3), B(4,4), C(-3,-4)

• A(-4,8), B(6.5,8), C(7,7)

• A(0,0), B(32,0), C(12,-8)

Which is FALSE about dilations?

• The shape is the same.

• The size changes.

• Dilations can only occur with whole number scale factors

• Dilations produce similar figures

After dilations, angles are ....

• similar

• congruent

• smaller

• larger

After dilations, the sides of the figure are...

• always smaller

• always larger

• the same

• proportional

Angle A corresponds to what angle?

• C

• R

• B

• P

Does the image show a Dilation?

• Yes

• No

Dilate Point A by a scale factor of 1/2

• (-4,-4)

• (-1,-4)

• (-1,-1)

• (-2,-2)

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

What would be the scale factor in the dilation shown?

• 1/1

• 1/2

• 4/1

• 2/1

A  figure has a vertices W(-2,4), and X(1,4. Find the  coordinates of the figure after a dilation with a scale factor of 2.

• W(-4,83),  X(2,8)

• W(-4,8), X(2,8)