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Use pythagoras theorem for this question, both of em are similar triangles

I honestly do not know how to.

i cant really help you the image is really fuzzy

and i dont run csi enhancer

do you know how to do the process you were talking about ? could you explain to me how to ?

ok lets start by finding this angle|dw:1438434416019:dw|

29 feet
48 feet
56 feet
60 feet
those are my options btw. And alright.

\[\cos^{-1} (\frac{ 40 }{ 50 }) is the \angle\]

cos^1 (40/50) is the angle

im really confused.

|dw:1438434482105:dw|

\[\frac{ 50 }{ 120 } = \frac{ 40 }{ 40+x }\]

now you can solve for x

you can do that i hope

thank you ...
But can i ask how you did that process ? if its too much to explain thats fine.

alright you just cross multiple the denominator to each sides to cancel them out (the 1st 2 lines).

thats how we end up with 50x=2800

This whole thing confuses me. I literally feel dumb. I don't understand any of this.

which part you do not understand?

ok ill write it in simpler form

You don't have to do that..

you gotta know how we come out with that first....

otherwise you will keep getting stuck

I just dont want to waste your time. And i don't think ill ever understand this.

well just take it easy, 1 thing at a time

okay..

ill explain to you how the\[\frac{ 50 }{ 120 } = \frac{ 40 }{ 40+x }\] is made first

okay

50+70 is how we got the 120., and we take the ratio of the smaller triangle to the larger one

ratio ?

yea the fraction you saw 50/120 is the ratio

okay.

now the other side of the triangle is 40 on small side and 40+x on larger side

they have to be proportional because they are co-linear so the ratio (that fraction) must be equal

okay.

you can understand that?

i think.

lemme try draw something to show you what i mean|dw:1438437049240:dw|

okay

like this in case the ratio of the triangle is 1:2 or 1/2

its similar as the question you had but the proportion is not so straightforward

so we use the ratio to find the distance of 40+x, with the ratio of the 50/120

I have to go. Can we finish this later ?

sure and see ya!

okay , thank you. i gave you a medal.

thank you

no problem.