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01-06-2008, 03:41 PM | #1 | ||
FF.Com.Au Hardcore
Join Date: Feb 2006
Location: Toowoomba
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i have a right angle triangle 6 x 6.2 x 8.8.
whats the rule for working it out??
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01-06-2008, 03:45 PM | #2 | ||
Rockin '67
Join Date: Mar 2007
Location: Adelaide
Posts: 1,416
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What are you trying to work out?
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01-06-2008, 03:47 PM | #3 | ||
FF.Com.Au Hardcore
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Location: Toowoomba
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thats what i thought it might be but wasnt sure. i thought pythag was usually used if you were missing the length of the hypotenuese
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01-06-2008, 03:47 PM | #4 | ||
Fairlane 4eva
Join Date: Jan 2007
Location: Shepparton
Posts: 382
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what do you want to work out?
angles sine = opposite/hypotenuse cosine = ajacent/hypotenuse tangent = opposite/ajacent if you want to work the angles out from lengths you use the inverse sine/cosine/tangent buttons on the calculator, usually sin-1, cos-1 or tan-1 on the calculator pythagerous' theroem a squared + b squared = c squared |
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01-06-2008, 03:49 PM | #5 | ||
Regular Member
Join Date: Jul 2007
Posts: 62
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what exactly are you trying to work out?
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01-06-2008, 03:50 PM | #6 | ||
FF.Com.Au Hardcore
Join Date: Feb 2006
Location: Toowoomba
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area. sorry
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1628 Escort Project Thread 67.3 RWHP - Paramount Performance Dyno DJ Automotive Tuned with proper jets http://fordforums.com.au/showthread....4&page=1&pp=25 |
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01-06-2008, 03:50 PM | #7 | ||
Regular Member
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Location: Victoria
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LOl good ole maths
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01-06-2008, 03:54 PM | #8 | ||
Fairlane 4eva
Join Date: Jan 2007
Location: Shepparton
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Could you calculate it like a rectangle/square and divide by 2. Length*width then divide by two? Two equal right angle triangles placed on each other would be a square or rectangle depending on triangle shape? Do you know what I mean?
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01-06-2008, 03:56 PM | #9 | ||
FF.Com.Au Hardcore
Join Date: Feb 2006
Location: Toowoomba
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ahh. makes sence dont it. thanks
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01-06-2008, 04:01 PM | #10 | ||
Fairlane 4eva
Join Date: Jan 2007
Location: Shepparton
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I did YR12 in 2004 I don't remember all the rules or anything strange like that but the logic makes sense, glad to help. Trigonometry was my favourite maths section though, sad as that may sound.
David |
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01-06-2008, 05:14 PM | #11 | |||
FF.Com.Au Hardcore
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Location: Moree, NSW
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Area of a triangle is A = 1/2BxH
ie. A - Area B - Base H - Height
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01-06-2008, 05:14 PM | #12 | ||
FF.Com.Au Hardcore
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Location: Toowoomba
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i do prevocational math a.....whats trigonometry
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01-06-2008, 05:14 PM | #13 | ||
Mr old phart
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1/2 base length X height for a right angle triangle area (1/2 a rectangle)
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01-06-2008, 05:49 PM | #14 | |||
FF.Com.Au Hardcore
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Quote:
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01-06-2008, 06:00 PM | #15 | ||||
Slow Learner
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Quote:
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01-06-2008, 06:13 PM | #16 | |||
black xb
Join Date: Jan 2006
Posts: 1,256
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Quote:
for non right angled triangle he would be using the sine area rule area = 1/2 a x b sin c where c is the angle between the 2 sides a and b a and b are both lengths. |
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01-06-2008, 06:13 PM | #17 | |||
FF.Com.Au Hardcore
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Quote:
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01-06-2008, 06:16 PM | #18 | |||
Slow Learner
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Quote:
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01-06-2008, 06:20 PM | #19 | ||
Where to next??
Join Date: Oct 2006
Location: Sydney
Posts: 8,893
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The correct rule as mentioned already is BASE X HEIGHT divided by 2.
It works for ANY and ALL triangles, as long as the height measurement is at right angles to the base (but the triangle does not have to be a right angled triangle) |
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01-06-2008, 09:18 PM | #20 | |||
certified nutter
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Location: Croydon Park
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Quote:
yeah you can use your sine rule for getting area, but why when you can do it so much simpler |
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02-06-2008, 07:59 AM | #21 | ||
FF.Com.Au Hardcore
Join Date: Mar 2005
Location: Sausage Singlet NSW
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Just use a bigger hammer !!!!
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02-06-2008, 11:46 PM | #22 | ||
FF.Com.Au Hardcore
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Location: Gren A Waverrey
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Half base X height...
Good old maths..fave topic at school... I never reached any great heights (does it show), but I still enjoyed it Still miss learning about maths too.
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05-06-2008, 08:23 AM | #23 | ||
Paulie
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Another complex triangle / mathematical problem that i solved recently
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05-06-2008, 08:53 AM | #24 | |||
FF.Com.Au Hardcore
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Quote:
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05-06-2008, 09:01 AM | #25 | ||
FF.Com.Au Hardcore
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Location: Vic/NSW
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Isn't this primary school maths?
Q. What is the area of a rectangle? A. = Length x width Q. What is a right angle triangle? A. = 1/2 a rectangle |
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05-06-2008, 12:10 PM | #26 | ||
FF.Com.Au Hardcore
Join Date: Jan 2005
Posts: 2,728
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I went well in maths till yr 10 then i gave it up, now i dont remember a thing!
I wish i kept it up now |
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05-06-2008, 12:23 PM | #27 | ||||
XR & FPV Owner
Join Date: Apr 2005
Location: On the Dark Side of The Moon
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Q1.)
If BP 98 cost 169.9c/L and I own a mondern V8 with a 68L tank, A) How much will it cost to fill from empty? B) How many banks will knock me back for a loan to fill said tank? Given you have found the answers to Q1 A&B; Q2.) If one of my kindeys is worth $20,000 on the black market; A) How many tanks of fuel will in buy? B) Will K-Rudd's Butler manage to throw a 'Casey' style party at the PM's house
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05-06-2008, 12:46 PM | #28 | ||
Regular Member
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stop It I`m Getting A Head Ache !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![u]
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05-06-2008, 01:34 PM | #29 | |||
13.96 @ 101.65
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Quote:
and the formula is 1/2 base x PERPENDICULAR height.
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07-06-2008, 11:23 PM | #30 | |||
XR6T 400kw(well one day!)
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Quote:
Well done!
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