Geometric Transformations - Part 2 of 2

Multiple Choice

Another name for a rotation is

• slide

• enlargement /reduction

• mirror

• turn

Multiple Choice

Another name for a dilation can be

• slide

• turn

• enlargement /reduction

• mirror

Multiple Choice

Describe the reflection

from ABC to A'B'C'

• Reflection over X-AXIS

• Reflection over Y-AXIS

Multiple Choice

This figure is rotating...

• 90^o clockwise

• 90^o counterclockwise

Multiple Choice

This figure is rotating...

• 270^o clockwise

• 270^o counterclockwise

Multiple Choice

SQR rotated ______________ to get S'Q'R'

• 90^o clockwise

• 180^o clockwise

• 270^o clockwise

Multiple Choice

SRQ rotated ______________ to get S'R'Q'

• 90^o counterclockwise

• 180^o counterclockwise

• 270^o counterclockwise

Multiple Choice

ABC rotated ______________ to get A'B'C'

• 90^o clockwise

• 180^o clockwise

• 270^o clockwise

​Types of Dilations:

​Enlargement (shape gets larger) Reduction (shape gets smaller)

Multiple Choice

ABC is mapped to A'B'C'

What type of dilation?

• enlargement

• reduction

Multiple Choice

ABCD is mapped to A'B'C'D

What type of dilation?

• enlargement

• reduction

​ABC is mapped to A'B'C

Multiple Choice

What is the scale factor of this reduction?

Hint: Compare A'B' to AB

What do you multiply by to change the side length?

• 1/2

• 1/3

• 3

• 4

Multiple Choice

What is the scale factor of this enlargement?

Hint: Compare A'B' to AB

What do you multiply by to change the side length?

• 1/2

• 1/4

• 2

• 4

EFGH is mapped to E'F'G'H'

​We can multiply the coordinates by the

scale factor to find the new location of each coordinate.

Multiple Choice

If A(2,1) is enlarged to A'(4,2),

how can this be described algebraically?

• (1/2x, 1/2y)

• (2x, 2y)

• (1/4x, 1/4y)

• (4x, 4y)

Multiple Choice

If C(2,6) is reduced using the rule

$$\left(\frac{1}{2}x,\ \frac{1}{2}y\right)$$  

What is the location of C'?

• C'(4,12)

• C'(1,3)

• C'(1,6)

• C'(2,3)

Multiple Choice

The triangle is reduced by a scale factor of 1/4. 

Find the missing side.

• x = 20
• x = 12
• x = 5
• x = 4

​Dilation

​(englargment/reduction)

​Rigid Transformations

​Translation, Rotiation, Refection

Multiple Choice

Are the two figures congruent?

• Yes, same size and same shape
• No, same shape but different sizes
• No, different size and different shapes

Multiple Choice

Are the two figures congruent?

• Yes, same size and same shape
• No, same shape but different sizes
• No, different size and different shapes

Multiple Choice

Determine the relationship of the figures.

• Congruent

• Cannot Determine

• Similar