captain26
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| Joined: 11 Sep 2009 |
| Total Posts: 3226 |
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| 20 Oct 2013 07:58 PM |
Ok so how do I find the angels of a triangle but I only have the lengths of the sides||
Equation please |
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| 20 Oct 2013 07:59 PM |
| all three angles have to add up to 180. |
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x1pro
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| Joined: 02 Dec 2009 |
| Total Posts: 8208 |
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| 20 Oct 2013 08:00 PM |
use a math tool
Mankind must put an end to war before war puts an end to mankind. -John F. Kennedy |
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Zegions
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| Joined: 25 Jul 2013 |
| Total Posts: 5281 |
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| 20 Oct 2013 08:02 PM |
you use the law of cosines i forgot it tho |
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captain26
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| Joined: 11 Sep 2009 |
| Total Posts: 3226 |
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| 20 Oct 2013 08:02 PM |
| But what if the triangle is cut in 3 peices and I can't use measuring devices |
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iKeno
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| Joined: 14 Jan 2008 |
| Total Posts: 27490 |
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| 20 Oct 2013 08:03 PM |
| someone needs to pay attention in class. |
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Stephiy
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| Joined: 17 Oct 2013 |
| Total Posts: 13277 |
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| 20 Oct 2013 08:03 PM |
All angles add up to 180.
If they're 2 even sides those 2 are the same then subtract those 2 numbers added together from 180.
"Do what you do and everything will be fine" - Unknown |
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x1pro
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| Joined: 02 Dec 2009 |
| Total Posts: 8208 |
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| 20 Oct 2013 08:03 PM |
agreed keno
Mankind must put an end to war before war puts an end to mankind. -John F. Kennedy |
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captain26
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| Joined: 11 Sep 2009 |
| Total Posts: 3226 |
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| 20 Oct 2013 08:04 PM |
| He didn't explain how to do this and no notes. |
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HMAX12
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| Joined: 25 Jul 2009 |
| Total Posts: 32693 |
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| 20 Oct 2013 08:04 PM |
Hey captain
I need math help
I need the formula for a Vector field. |
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Stephiy
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| Joined: 17 Oct 2013 |
| Total Posts: 13277 |
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| 20 Oct 2013 08:04 PM |
"And I can't use measuring devices"
Use one and go to class saying "I took an educated guess."
"Do what you do and everything will be fine" - Unknown |
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| 20 Oct 2013 08:05 PM |
know the following: ---------------------------------------- 1) angles need to add to 180
2) law of sines (a/sin A) = (b/sin B) = (c/sin C)
angle opposite of side (a) would be angle (A)
3) law of cosines (c^2 = a^2 + b^2 - 2(a)(b)(cos(C)) ----------------------------------------
given all three sides, you MUST use the law of cosines to first find any one of the three angles. then, you can use the law of sines to find the third. to the find the last, you can add up your two angles, and then subtract from 180 to get your final answer.
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x1pro
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| Joined: 02 Dec 2009 |
| Total Posts: 8208 |
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| 20 Oct 2013 08:06 PM |
180
Mankind must put an end to war before war puts an end to mankind. -John F. Kennedy |
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| 20 Oct 2013 08:07 PM |
law of sines or cosines
[» clιcĸ нere тo voтe ғor мe (тнαɴĸ yoυ) ☁][1] [1]: http://woobox.com/6gs8j6/vote/for/1501950 | Juice141623 - 1 dayer add 14K to Post Count |
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