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#51 2011-01-19 07:04:27

Carissa
Guest

Re: finding the missing side of a triangle

thanks daniel!

#52 2011-02-09 12:57:07

Alexys
Guest

Re: finding the missing side of a triangle

careless25 wrote:

Post your question n i will see if i can help. ;)

i dont get any of this help

#53 2011-02-09 13:22:55

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi Alexys;

Welcome to the forum.

Alexys wrote:

i dont get any of this help

How about mentioning where you are stuck. Then you can get help.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#54 2011-02-10 14:22:47

ShivamS
Member
Registered: 2011-02-07
Posts: 3,523

Re: finding the missing side of a triangle

@holly: Order doesn't matter because addition is commutative, but you cannot put opposite+adjacent=hypotenuse
You can switch opp and ad, but hyp you can not.

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#55 2011-02-12 05:04:34

ClareLM
Guest

Re: finding the missing side of a triangle

John E. Franklin wrote:

Here's another one to help you.
The big side is 5 long.
The short side is 3 long.
The medium side is 4 long.
The angle between the
two short sides must be
like a square corner to do
it this way.
         l
         l  =
         l    =
         l       =     5×5=25
  4     l          =
×4     l            =
___    l               =
16     l_                 =                  Here's the cool part!! 25 - 16 = 9                                       
         l_l___________=                   and 25 - 9 = 16   
               3×3=9                               and  9 + 16 = 25

I LUV YOU!!!!!!!!!!!!!!! THANK YOU SOOOOOOOO MUCH!!!!!rofloldizzy:lol::P:o:D:)wavetouchedup

#56 2011-05-18 10:22:32

kgk
Guest

Re: finding the missing side of a triangle

3daniel wrote:

use the pythagorean formula (a² = b² + c²)
a= hypotonuse
b= side
c= side
therefore
26² = 10² + x²
676 = 100 + x²
x² = 576
x = 24

ummm this person is wrong. the real equation you use is a²+b²=c²
so yeah all those people that you helped probably got the question wrong. Here is the right equation to try and help everybody!

#57 2011-05-18 10:31:30

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi kgk;

Welcome to the forum.

3daniel is not incorrect. Just a little unorthodox in his use of letters.

a^2 = b^2 + c^2 is not incorrect as long as you put the 2 sides in b and c and solve for a.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#58 2011-05-20 10:49:28

:-P
Guest

Re: finding the missing side of a triangle

my question says the area of a triangle is 32 sq. ft. if the base if 4 ft., what is the height?
HELLLLP!!!!!


Thanks!!! dizzy

#59 2011-05-20 11:20:46

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi :-P;

Welcome to the forum!

The formula for the area of a triangle is:

Now just plug in for what you have:

Times both sides by 2.

So h or the height is 16 ft.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#60 2011-05-28 23:32:19

jordan simonds
Guest

Re: finding the missing side of a triangle

bryan wrote:

i have a triangle it is a right triangle
the hypotonuse is 26
one leg is 10
the other leg is X
i do not know what to do to slove for x

        l
        l  =
        l    =
        l       =      26
    10 l          =
        l            =
        l               =
        l_                 =                                                     
        l_l___________=
             X


that is the best way i could stech it on thereso do not hate

26 squared- 10 squared= 576. 576 square root= 24

#61 2011-06-18 05:55:34

lucyann
Guest

Re: finding the missing side of a triangle

in triangle ABC the measure of angle A is 32, the measure of side a is 12 and the measure of side b is 10 Find the measure of the missing angles and side of triangle ABC. Round each measure to the nearest tenth.

#62 2011-06-18 06:48:16

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi lucyann;

Welcome to the forum! Do you know what the law of sines is?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#63 2011-10-20 07:53:04

bieberfever
Guest

Re: finding the missing side of a triangle

swear shame dunno i need help for something like this but im in 8th grade in integrated algebra and its a triangle on one side its 5 ft on the bottom line of the triangle its 8 ft. the last side is x. i need to find x how? plzzz tell me answer and how to do it i realy need help!! dunno









3daniel wrote:

use the pythagorean formula (a² = b² + c²)
a= hypotonuse
b= side
c= side
therefore
26² = 10² + x²
676 = 100 + x²
x² = 576
x = 24

#64 2011-10-20 08:03:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi bieberfever;

Is it a right triangle?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#65 2012-01-31 10:27:24

jackie21137
Guest

Re: finding the missing side of a triangle

(

3daniel wrote:

use the pythagorean formula (a² = b² + c²)
a= hypotonuse
b= side
c= side
therefore
26² = 10² + x²
676 = 100 + x²
x² = 576
x = 24

[Incorrect, and rude,  comment removed by moderator]



l                                                   a²+b²= c²
        l  =                                       
        l    =                                     
        l        =  26                                                         
    10 l          =                                 
        l            =
        l               =
        l_                 =                                                     
        l_l___________=
             X=4:D

[24 is correct]

#66 2012-01-31 10:39:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi jackie21137;

Welcome but I am sorry his answer is correct and yours is not. You are not using the pythagorean theorem correctly.

Please be more careful and tactful in correcting previous posts.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#67 2012-04-28 12:51:45

Star1400000
Guest

Re: finding the missing side of a triangle

wave
What is the missing side length if a= 10 b= 24 and c= x
a. 26
b. 36
c. 40
d. Square root of 124
Please help, not sure what to do neutral dunno

#68 2012-04-28 13:02:06

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,507

Re: finding the missing side of a triangle

Hi Star1400000

Welcome to the forum!

I suppose that the trianglw you are talking about is a right triangle.

Do you know the Pythagorean theorem?

Wikipedia-Pythagorean Theorem


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#69 2012-05-06 21:04:21

forgman
Guest

Re: finding the missing side of a triangle

help me to thanks

#70 2012-05-20 09:22:55

shebly61#
Guest

Re: finding the missing side of a triangle

swearsweardunno:(

LuisRodg wrote:
Sunnayyy wrote:

i need help figuring out how to find the missing side of a right triangle with legs: a= 12, and b=9....?

So by following the formula given before:

Where:

a and b are the sides and c is the hypotenuse.

So you have sides a=12 and b=9.





im stupid
it took me forever to figure this out

#71 2012-05-20 09:29:35

shebly
Guest

Re: finding the missing side of a triangle

hi shebly

I have edited the post you refer to as you are quite correct; it was wrong mathematically.

But I have also removed your remarks as they were also unnecessarily rude.

Why not join the forum and make a contribution.

But please read the rules first; here are two quotes from them:

This is not a place to be mean to others and these posts will not be tolerated. Light banter or constructive criticism can be allowed if it is polite and friendly. Remember, other people have feelings too. "Those who give respect shall receive it."

Make Yourself Understood. It is ok to sometimes use shortened words such as gr8, but too much of this will classify your post as spam.

Bob, moderator

#72 2012-08-12 13:23:00

sarah123
Guest

Re: finding the missing side of a triangle

okay so i have a triangle with a side of 230m and 150m, what is the missing length?

#73 2012-08-12 13:24:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi sarah123;

Is this a right triangle?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Offline

#74 2012-12-12 15:47:12

Gillian__Smartiee
Member
Registered: 2012-12-12
Posts: 1

Re: finding the missing side of a triangle

I don't know if I can explain my question properly but if someone understands please help!! Ok so the directions say Find the length of AB to the nearest hundredth centimeter.  All measurements are in centimeters, but figures may be drawn to different scales. Explain your reasoning.

The first problem is a rectangle  and it has a dotted line going from the bottom of the left corner (it has an A right next to it) to the top of the right corner ( it has a B right next to it). The bottom lenght of the rectangle measures 1.2 and the right side measures .8. The dotted line in the middle forms two triangle in the rectangle. Please someone help me!

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#75 2012-12-12 19:09:46

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 85,358

Re: finding the missing side of a triangle

Hi Gillian__Smartiee;

I have drawn your rectangle below, click on it to enlarge it. If my drawing is correct then to find AB you use the pythagorean theorem where c is AB.

Take the square root of both sides,

So AB = 1.4422205101 cm.

Do you know how to round that to the nearest hundredth?

View Image: 2012-12-12_150444.gif

In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

Offline

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