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Tuesday, November 29, 2005

My Angle on Circles

Hello everybody! Well today in class we started off with a quick presentation by Mr. Kuropatwa on how to get a del.icio.us account. If you need any more info on that look at Mr. Kuropatwa's previous post on it. We then moved on to our first project of the course. There are options for what you can do but the general project is when you answer a question that he handed out then you solve it, communicate and present your results the best you can. He said that with this project it is easy to get an 88%. This is because all you need to do is do the math correctly then present it and communicate in a little above average manner. But if you want the 90's or the fabled hundred then you got to work. Some people have made a webpage, dioramas, videos and things like that. But if you do make one of those it doesn't garauntee anything. If you make a video and it's not decent you can still fail. If you don't want to do the question you can also talk to Mr. Kuropatwa about making a instructional video or something along those lines (your deadline will also be extended).

After he explained the project we went on to our Circle Theorums. We did two today. The Tangent Radii Theorum and The Tangent Chord Theorem.

The Tangent Radii Theorem

"If two tangents are drawn from a common point, exterior to a circle, then they are equidistant."
"If a radius intersects a tangent line, then where they meet it is a right angle."

This is a diagram of that:
All of the angles where the tangent lines and the radii meet are 90 degree angles.

The Tangent Chord Theorem:
"If an angle is formed between a tangent line and a chord then, then on the opposite side of a chord if an inscribed angle is made then those angles are congruent."



Angle RAB = 148.3 degrees
Angle SAB = 21.7 degrees
Angle ACB = 148.3 degrees
Angle ADB = 21.7 degrees
Angle MNY = 34.7 degrees
Angle XNM = 145.3 degrees
Angle NLM = 145.3 degrees
Angle NWM = 34.7 degrees

That concludes my summary on the class. The next scribe is:

It's Robert!!!!

3 Comments:

At 11/29/2005 6:49 PM, Blogger AichelleS. said...

nice banner lol...your other pictures are cool too haha and good summary of the class

 
At 11/29/2005 7:03 PM, Blogger Mr. Kuropatwa said...

Awesome scribe Graeme!

 
At 11/29/2005 7:30 PM, Blogger Richy said...

Graeme's banner owns all banners. Hahaha

 

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