Opener: Please complete this opener on a NEW opener sheet. Pick one up at the desk if I didn't hand you one on your way in.

Note: When the bell rings, I will walk around to check that you've started working. If you haven't, you won't get your opener points for the day...

P.S. Happy new semester! :)

Simplify the following radical expressions exactly. Don't use your calculator!

1. √75 2. √90 3. √68

4. 2√80 5. 3√18 + 6√128

Title: Jan 22­4:02 PM (1 of 6)

More Work with Radicals:

Title: Jan 22­4:12 PM (2 of 6)

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Sketchpad: Example One

Conclusions Proof

1. 1.

2. 2.

Title: Jan 22­4:24 PM (3 of 6)

Sketchpad: Example Two

Conclusions Proof

1. 1.

2. 2.

Title: Jan 22­8:06 PM (4 of 6)

More about Perpendicular Bisectors :

Ready... Write the equation of the perpendicular bisector of a segment.

Set... What do you need to know?

1.

2.

3.

Go... Write the equation of the perpendicular bisector of the segment with endpoints at (6, -5) and (10, 1).

Title: Jan 22­8:12 PM (5 of 6)

Your task: Complete the following problems on a piece of notebook paper.

P. 304 #2, 4, 6, 7, 10

• Everything you need to know is in your notes from today. • Read the theorems carefully and apply them.• Notify me when you are done. Your work is worth 5 points toward your homework grade.• Accuracy counts, as does organizing your work well and using the pictures given.• Do your work with pride.• You have _______ minutes to work.

Title: Jan 22­8:22 PM (6 of 6)