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by iamcste » Fri Nov 21, 2008 1:15 pm
If BCA is x, then nothing is left in the question...

whats the source..
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by mals24 » Fri Nov 21, 2008 1:32 pm
If BCA = x
Then x = y

Angles on the opposite side of the transversal AC are equal.

So we just need to know the value of y.

St 1 y = 50---SUFF
St2 z = 40 -- INSUFF.

Answer is A.
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