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OpenStudy (anonymous):
find the value of Y ?
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OpenStudy (anonymous):
Picture
OpenStudy (anonymous):
Can you try finding two similar right triangles in that shape?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
If I remember right, theres this geometric mean thing for triangles. Search it up if you need to. Mostly, 4*12=y^2, so y is the square root of 48, or 4rt3. its using similar triangles.
OpenStudy (anonymous):
4/y=y/12 since the two smaller triangles are similar
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OpenStudy (anonymous):
so i just divide
OpenStudy (anonymous):
cross multiply
OpenStudy (anonymous):
48 ?
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