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Algebra 9 Online
OpenStudy (anonymous):

Triangle ABC is reflected over the y-axis. What is the length of the hypotenuse of triangle A'B'C'?

OpenStudy (anonymous):

OpenStudy (anonymous):

@iGreen

OpenStudy (anonymous):

@iambatman

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

is it 2?

OpenStudy (anonymous):

@iGreen

OpenStudy (bloomlocke367):

no. a^2+b^2=c^2. take 3^2+4^2 to find the hypotenuse

OpenStudy (bloomlocke367):

I'll tell you a little trick when you're done.

OpenStudy (anonymous):

25?

OpenStudy (anonymous):

Yeah, now squareroot it

OpenStudy (anonymous):

You don't even need Pythagorus, you could've just counted.

OpenStudy (anonymous):

square root?

OpenStudy (bloomlocke367):

did you get your final answer? and there's a trick about that triangle. It's a 3 4 5 triangle.. meaning whenever the legs are 3 and 4, the hypotenuse with be 5. If you remember that, things will be a lot easier for you. Same goes for 6 8 and 10..

OpenStudy (anonymous):

Yes, if you're using Pythagorean theorem \[a^2+b^=c^2 \implies c = \sqrt{a^2+b^2}\]

OpenStudy (anonymous):

the answer is 5

OpenStudy (anonymous):

Yes...

OpenStudy (anonymous):

is this a translation

OpenStudy (bloomlocke367):

There you go :) Good job :)

OpenStudy (bloomlocke367):

Is that supposed to show the lines shifting upwards?

OpenStudy (anonymous):

yes

OpenStudy (bloomlocke367):

what do you think the answer is?

OpenStudy (anonymous):

translation

OpenStudy (bloomlocke367):

well there you go :) but next time only post one question at a time.

OpenStudy (anonymous):

k, sorry

OpenStudy (bloomlocke367):

it's okay :)

OpenStudy (bloomlocke367):

if you need more help just tag me

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