Let △PQR be a triangle. Let →a=−−→QR,→b=−−→RP and � – InterviewSolution

1.	Let △PQR be a triangle. Let →a=−−→QR,→b=−−→RP and →c=−−→PQ. If \|→a\|=12,\|→b\|=4√3 and →b.→c=24, then which of the following is (are) true?
Answer» Let $△ P Q R$ be a triangle. Let $\to a = - - \to Q R, \to b = - - \to R P$ and $\to c = - - \to P Q .$ If $\| \to a \| = 12, \| \to b \| = 4 \sqrt{3}$ and $\to b . \to c = 24,$ then which of the following is (are) true?

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