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Author Topic: Maths help  (Read 2687 times)

Offline MissDE

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Maths help
« on: May 15, 2009, 08:55:30 pm »
Maths
June 2005
Paper 4
Question 2/c

I don't understand at all!
how do they use the tan rule, it's not a triangle !!
and where did the 1.5 come from..?


need help guyz..
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Offline MissDE

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Re: Maths help
« Reply #1 on: May 16, 2009, 08:34:34 am »
 ???
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Q80BOY

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Re: Maths help
« Reply #2 on: May 16, 2009, 09:06:18 am »
just draw the trapezium

the base = 12 cm

the upper part = 9 cm
(the middle should be at 4.5)

and the height is 7 cm
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Offline 7RAR7

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Re: Maths help
« Reply #3 on: May 16, 2009, 09:15:06 am »
whats the tan rule
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Q80BOY

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Re: Maths help
« Reply #4 on: May 16, 2009, 09:25:57 am »
Quote from: 7RAR7 on May 16, 2009, 09:15:06 am
whats the tan rule


is there a tan rule? i only know the sine and cosine rules
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Offline SGVaibhav

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Re: Maths help
« Reply #5 on: May 16, 2009, 09:26:28 am »
he is lost!
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Offline astarmathsandphysics

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Re: Maths help
« Reply #6 on: May 16, 2009, 09:29:19 am »
Never heard of the tan rule.
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Q80BOY

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Re: Maths help
« Reply #7 on: May 16, 2009, 09:29:26 am »
Quote from: sgvaibhav on May 16, 2009, 09:26:28 am
he is lost!

ya, i think so, cause the question doesnt ask for any calculations, just constructing  :-\
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Q80BOY

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Re: Maths help
« Reply #8 on: May 16, 2009, 09:31:12 am »
Quote from: astarmathsandphysics on May 16, 2009, 09:29:19 am
Never heard of the tan rule.

its easy, apply sun tan before going to the beach  :P

so lame right ?  ;D
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Offline AS girl

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Re: Maths help
« Reply #9 on: May 16, 2009, 09:43:09 am »
I uploaded the answer!! You dont have to use any rule!!!
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If i fall along the way pick me up and dust me off...and if i get too tired to make it..be my breath so i can walk!!

Offline MissDE

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Re: Maths help
« Reply #10 on: May 16, 2009, 09:49:11 am »
IG girl u r great! :D

And guyz.... are u serious???
I mean, dont u knw the tan rule?

It says---> opposite lenght/adjecent length....
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Offline AS girl

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Re: Maths help
« Reply #11 on: May 16, 2009, 09:50:04 am »
lool i guess everyone know the Tan rule by now!!!
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If i fall along the way pick me up and dust me off...and if i get too tired to make it..be my breath so i can walk!!

Offline Ukhti-R

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Re: Maths help
« Reply #12 on: May 16, 2009, 09:52:54 am »
No Q80, that actually made me laugh !!!  :D
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Offline SGVaibhav

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Re: Maths help
« Reply #13 on: May 16, 2009, 09:56:59 am »
is there actually a tan rule

i am not talking about tan x=opp/adj

im asking does a tan rule exist in reality?
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Offline Ukhti-R

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Re: Maths help
« Reply #14 on: May 16, 2009, 09:58:40 am »
not in IG's bt in A level
we only got sine and cosine
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"...And whosoever fears Allah and keeps his duty to Him, He will make a a way for him to get out (from every difficulty). And He will provide him from (sources) he never could imagine. And whosoever puts his trust in Allah, then He will suffice him." [65: 2-3]
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