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anonymous
 one year ago
triangle help plz
anonymous
 one year ago
triangle help plz

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nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0Okay. What's your question?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1439402369884:dw Given that:AB8 BC=3 DE=13 BD=x What is the value of xx?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@ganeshie8 @Hero @pooja195

nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0I'd say just set up a ratio between the corresponding sides of the triangle and use substitution to find the value of x, then multiply x by itself.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok imma be real with u but i only got x part and multiply it now slow down and explain

nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0If you'll notice, since triangle ABC and triangle ADE both share point A, they are similar triangles. This means that we can set up a proportion between sides AB and AD, and sides BC and DE.

nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0It would look like this, \[\frac{ AB }{ AD } = \frac{ BC }{ DE }\] This is a proportion between the side lengths of the smaller and larger triangles. Now all you have to do is substitute to find the value of x. I'll explain further.

nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0Since AB is 8, we would substitute that value in for the proportion. This continues with the other values until we arrive at... \[\frac{ 8 }{ 8 + x } = \frac{ 3 }{ 13 }\] All you have to do now is cross multiply and you'll be able to find the value of x.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wht pellet im fried im lost again ahhhhhhhh my brain

nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0@jamesr Where have you been able to follow up to?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the part where it would look like ...

nerdyotter
 one year ago
Best ResponseYou've already chosen the best response.0Are you talking about the proportion I set up? The second proportion I set up is the same as the first one. All I did was substitute in values. In simpler terms, if we're trying to find... \[\frac{ AB }{ AE } = \frac{ BC }{ DE }\] This proportion is the exact same as... \[\frac{ 8 }{ 8 + x } = \frac{ 3 }{ 13 }\] The only thing the second proportion is doing is substituting in the values of AB, AE, BC, and DE.
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