the perimeter of a triangle is 76 cm. side a of the triangle is twice as long as side b. side c is 1 cm longer than side a. find the length of each side.

- anonymous

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- anonymous

hmm do u want the answer or just a hint?

- anonymous

the answer

- anonymous

|dw:1321814483458:dw|
x+2x+2x+1=76
5x = 76-1
x=15

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## More answers

- anonymous

the answer is a=30 b=15 c=31

- anonymous

b= 15, a = 30, c = 31

- anonymous

if you just want the answer, there it is

- anonymous

i meant the way u solve it and the answer

- anonymous

done! :-)

- anonymous

there look at my nub drawing

- anonymous

Sure...
a = tan(b)
b+tan(a)=pi
c = 45/sin(c*a*pi^2)
solve all that and you get a=30, b=15, c=31

- anonymous

i meant solve it for me

- anonymous

-.-....
x+2x+2x+1=76
5x = 76-1
x=15
b= 15, a = 30, c = 31

- anonymous

i will solve it for you...
a = tan(b)
b+tan(a)=pi
c = 45/sin(c*a*pi^2)
a = tan(b) = sin(pi)+4
a = sin(pi) + 4
a = 30
b +tan(a) = pi
tan(a) = pi - b
b = pi^2 + 4
b = 15
c = a+1
c = 30 + 1
c = 31
does that make sense?

- anonymous

the first side of a triangle is 8 m shorter than the second side. the third side is 4 times as long as long as the first side. the perimeter is 26 m. find the length of each side.

- anonymous

right, a=30, b=15, c=31

- anonymous

oh wait this is a new problem?

- anonymous

sorry, i'll solve this one too

- anonymous

a = cot(45)^2 + 30
a = pi^2 - e^t + 30
a = 3
b = a^2 / cot(45) * pi^3
b = a^2 - 30
b = 11
c = b+a^4 - n(4)
c = b^2 -2a
c = 12
so the answer is a=3, b=11, c=12

- anonymous

you can check it's right because a+b+c=26

- anonymous

i hope this was helpful

- anonymous

can u do it in another way

- anonymous

sec

- anonymous

i can help you do it another way. call the first side "a", the second side "b" and the third side "c". it says "the first side is 8 meters shorter than the second side". can you write that as an equation?

- anonymous

A is 8 meters shorter than B. can you write that down as an equation?

- anonymous

|dw:1321815214355:dw|

- anonymous

no u just do it

- anonymous

i did it already above

- anonymous

if you just want the answer copy what i wrote

- anonymous

if you actually want to learn then write something down

- anonymous

so... x-8+x+4(x-8) = 26

- anonymous

now solve that

- anonymous

for x

- anonymous

there you go, you have the answer two different ways now

- anonymous

ok i cant get it

- anonymous

can u please solve it

- anonymous

-.- take a paper and a pen/pencil and draw that diagram

- anonymous

I'm sorry nicki But I'm not going to help any more. You are not putting any effort into this at all. Like, 0 effort. You're just waiting for the answers so you can copy them down and turn them in.

- anonymous

i did

- anonymous

what did you do? show me how far you got and I will help

- anonymous

first side is 8 cm shorter so, b is x, a = x-8

- anonymous

third side is 4 times bigger than first side... so... 4(x-8)

- anonymous

they dotn tell u about b so we consider it 'x'

- anonymous

im trying my best ok

- anonymous

there fore we get the equation, x+4(x-8)+x-8=26

- anonymous

yeah

- anonymous

x+4x-32+x-8=26

- anonymous

solve it now, bring the x to one side and numbers to other

- anonymous

you should know this, if ur getting those questions for homework/revising..it pretty much basic algebra

- anonymous

yea

- anonymous

can u please solve it for me please im beggin you

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