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OpenStudy (quickthing):
OpenStudy (alyssa_xo):
similar polygons have sides in the same proportion
if jkl ~qrs that means jk corresponds to qr
and kl corresponds to rs
and lj corresponds to sq
OpenStudy (quickthing):
right
OpenStudy (quickthing):
i tried setting the corresponding parts equal to each other
OpenStudy (quickthing):
didn't work
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OpenStudy (alyssa_xo):
show me your proprtion
OpenStudy (quickthing):
e.g. x+4=24, 2x-1=36
OpenStudy (alyssa_xo):
that's not the equality
the sides are in proportion with each other
OpenStudy (quickthing):
Oh.
OpenStudy (alyssa_xo):
I'll set it up
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OpenStudy (quickthing):
Thanks
OpenStudy (quickthing):
That would help
OpenStudy (alyssa_xo):
so \(\large \dfrac{JK}{QR}=\dfrac{JL}{QS}\implies \dfrac{24}{x+4}=\dfrac{36}{2x-1}\)
OpenStudy (quickthing):
Thanks. That's what I did, but I didn't know how to solve it.
OpenStudy (alyssa_xo):
that's not what you did if what you wrote was " x+4=24, 2x-1=36"
either way, you can "Cross multiply" and solve for x
technically cross multiplying isn't a thing, you're just multiplying and dividing to solve for x
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