Wednesday, December 15, 2010

Geometry: Commonly Missed

To help students prepare for tomorrow's BA, here are some of the more commonly missed problems from the last quiz and from the review. These are pulled off the YouTube channel to help you guys focus.

Finding the Perpendicular Bisector:

Also here are the answers to the Practice Test from class:
Quiz #1 1c 3a 8g #2 2g 5a 7c 8j 9a 10g 11b
Test:  1b 2h 8j 9c 11d 14g 15c 16j 17c 18g


  1. Hey Mr. O, I was looking at the Chapter 5 Test part and was wondering if you could tell me where there is an example or a place where I can find out how to do number two. I'm a little lost...

  2. Without a copy of the test infront of me that's a tough one to answer. More than likely you're talking about the one related to a point on the perpendicular bisector, right? It gives you two points, and then asks you pick a third point from the list?

    If that's the problem, here's how you solve it:

    1) First you find out that the two points given is a Vertical (I think) line.

    2) Then you find out where the midpoint is. Since the point you're looking for has to be a Horizontal line, through that point, you can narrow your picks. Why is the PB Horizontal? Because a horizontal line is perpendicular to a vertical line.

    Check with me first thing tomorrow if I'm remembering the problem wrong.

  3. Wow, that was almost creepy... That was exactly what I was talking about... Haha but okay I get it now. Thank you :)