Monday, March 2, 2009

Class summary. 020309

Today we began our class with correcting the homework we had over the Carnival.
I think the homework was pretty easy for almost everyone, we went over some questions, but i think things were clear for everone.
One of the ex. we went over, however, was nummber 49.
So you were supposed to find X and Y.
to do that you need to find out how much the two congruent sides are.
you apply the pythagorem theorem, and then when you have solved everything the whole side should be 20,12, which means that each segment is 10,06.

After that you can use TAN to find y;
To find Y you have to do the following;







when you are done with that you do the same thing for X. The answer should be 29.2 and 41.8.

Todays Class!

Special Right Triangles!

we looked at two theorems today in class;

Theorem8-6: In a 45gr-45gr-90gr triangle, the hypotenuse istimes as longas a leg.



Theorem 8-7: In a 30gr-60gr-9gr triangle, the hypotenuse is twice as long as the shorter leg, and the longre leg istimes as long as the shorter leg.




This is a table you easily can use now when you are going to start doing the homework.


Guys We neeeeed to remember this table!! you will not be able to have the table in front of you on tests and Quizes!


So.. now... the Homewooork:) shiihuu!:D

Page 409 #11-27 All!

Good Luck:D See u tomorrow:D:D

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