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Tuesday, October 18, 2005

Why hello there. my name is wendy. i'm the scribe for today. so please sit and enjoy :) today's class started at 1:19 pm, just when lunch is over. we had a sub teacher. we started off talking about reviews on trig : SOH CAH TOA. we then wrote down notes about Sine Law. today's class we learned "Sine Law" ; Sine Law - is used for triangles that are NOT right angles. - the formula for Sine Law is a b c
---- = ---- = ----
sinA sinB sinC
( to solve a triangle means to find all the missing parts. )
Example : ∆WXY w = 18.3,
Solve for ∆WXY. first draw the diagram (which can't be drawn on this blog. :S)

w x y
----- = ----- = -----
sinW sinX sinY
---
--
-
18.3 x y
----- = ----- = -----
sin62° sin15° sin103°
---
--
-
18.3 x ----- = ----- sin62° sin15°
---
--
-
18.3sin15° = xsin62°
--------------- ------------
sin62° sin62°
---
--
-
5.4 = x


18.3 y
----- = -----
sin62° sin103°


18.3(sin103°) = y(sin62°)
----------- ----------
sin62° sin62°

20.2 = y

By the time it was 1:45 pm, the teacher handed out a worksheet (both side) on "The Laws Of Sines" **a quote from Sam. "best bath class she's had"**

Homework for tonight is Ex. 19 questions 1 - 10 & worksheet (both sides)


Muddiest point is... THE PERPENDICULAR LINES.... AND PARRALLEL LINES & ANY THING THAT HAD TO DO WITH IT :)

Tomorrow's scribe is going to be..... i .... chose... you .... PIKACHU! :) .. lol. no no . i uh ... im not really sure who i should chose? give me a second. MMMM let me think.... who should it be this time? someone that didn't get the chance to be the scribe? could it be T-sa? nope. she has been scribe already. could it be... steven F? nope. he was already scribe. darn it. i have no clue. i guess tomorrow's scribe will bee...... ** drumss....** ------ Natasha ------ ** -_- (t-sa's face) =p bleh!... GOOD LUCKK! :)

3 Comments:

At 10/18/2005 7:50 PM, Blogger Wendy_V said...

omg i missed up on my blog :( mayb next time

 
At 10/18/2005 10:22 PM, Blogger Mr. Kuropatwa said...

You can fix it Wendy. Read this if you need any help. It was written by a student in my Grade 11 pre-cal class. ;-)

 
At 10/19/2005 4:03 PM, Blogger T-SA said...

HAHA I'M NOT THE SCRIBE

.__.

 

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