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Find BC of AC=21 and AB=9
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Find BC of AC=21 and AB=9

User Castorix
by
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1 Answer

4 votes
The answer is 12. How did I get it?

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A B C

AC = 21 (the whole line adds up to 21)
AB = 9 (half of the line is 9)
BC = AC-AB

21- 9 = 12 so BC is 12
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