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Mathematics 12 Online
OpenStudy (ashley_fay):

Find the value of x

OpenStudy (ashley_fay):

OpenStudy (anonymous):

triangle CDE is similar to BAC. Therefore you just use proportions.

OpenStudy (anonymous):

\[\frac{ 42 }{ 6 }=\frac{ x }{ 32-x }\] Solve for x.

OpenStudy (anonymous):

I'm not sure if there's more to the question, but if there is and you're learning similarity, then it's certain that's what you should do. But if not, then it's a doozy. I will have to take another look at it later.

OpenStudy (ashley_fay):

it just says to round your answer to two decimal places. thanks for the help

OpenStudy (anonymous):

@ashley_fay Are you learning similarity at school?

OpenStudy (ashley_fay):

i was earlier but that was at the beginning of the unit and i kind of forgot about it.

OpenStudy (anonymous):

What topic is this on? When you got these questions, what topic is this?

OpenStudy (ashley_fay):

studying for the unit quiz

OpenStudy (anonymous):

That doesn't give me a clue what topic you're learning when you got these questions.

OpenStudy (ashley_fay):

ummm Geometry?? well the practice is a review over the whole unit soo thats why i said that but before this practice i was learning about trigonometric ratios

OpenStudy (anonymous):

Does the question just say find the value of x. Is there more to it? Does the image have any parallel lines or angles involved?

OpenStudy (ashley_fay):

it says: Given that triangle ABC~triangle DEC, Find the value of x. If necessary round your answer to two decimal points

OpenStudy (ashley_fay):

i put the same exact image on here

OpenStudy (anonymous):

See, you only gave "solve for x instead of the whole question word for word. That's just leaving out vital information.

OpenStudy (anonymous):

So I was correct. Read what I wrote above and solve for x.

OpenStudy (ashley_fay):

x=28

OpenStudy (raden):

does the line of BC perpendicular with line CE ?? is there sign right angles there ??

OpenStudy (raden):

if yes, use the similarity property and we get the proportion : x/6 = 42/(32-x) solve for x

OpenStudy (raden):

@Azteck, which triangles were similar ? i think u take incorrect proportion ?

OpenStudy (raden):

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