2.5. Rotation and it's Properties

​-I can perform rotations

-I understand the properties of rotations.​

Multiple Choice

What transformation would map one of the figure to the other?

• Reflection

• Rotation

• Translation

• Dilation

Clockwise vs. Counterclockwise

​Rotations are described with 3 specifics

• Direction

• Degrees

• Center​

​

^{Sometimes direction will be indicated by a (-) sign. If there is no direction indicated look for the sign before the degrees. (-) means clockwise}

Multiple Choice

Which direction did the point 𝑃 rotate when 𝑑 ≥ 0 ?

• clockwise

• counterclockwise

Multiple Choice

4. Which direction did the point 𝑃 rotate when 𝑑 < 0?

• clockwise

• counterclockwise

Math Response

What is the length of the rotated segment a'b'? __ units

Type answer here

Correct Answer: 4

Deg^°

Rad

Math Response

What is the degrees of the rotated angle C'D'E' __ degrees

Type answer here

Correct Answer: 45

Deg^°

Rad

Open Ended

What do you notice about line L1 and L2?

Multiple Choice

Do you think they will be parallel if we rotate them? Try it out on your paper, then write what you discover.

• yes,they will stay parallel

• no, they will not stay parallel

​SAMPLE RESPONSE

Fill in the Blanks

A segment of length 94 cm has been rotated 90 degrees around a center 𝑂. What is the length of the rotated segment?

Fill in the Blanks

An angle of size 124° has been rotated 180 degrees around a center 𝑂. What is the size of the rotated angle?

​CLOSING