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where is D?
i wrote f instead of d sorry about that
ED is perpendicular?
no
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is there any other information ?
no
Use triangular ratios.
if two triangles are similar then only we can use ratios
|dw:1446916906564:dw|
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that's what she meant by ratios i guess
how do u know AD perpendicular to BC
and it seems like 4x=x. :O
it's not perpendicular 4x, x ratio is given in the question 4x's area is 64 x's area is 16
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