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The radii of the escribed circles of triangle ABC are ra, rb and rc respectively. If ra+rb=3R and rb+rc=2R, where R is radius of the circumcircle of triangle ABC and ∠B=πk, then the value of k is |
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Answer» The radii of the escribed circles of triangle ABC are ra, rb and rc respectively. If ra+rb=3R and rb+rc=2R, where R is radius of the circumcircle of triangle ABC and ∠B=πk, then the value of k is |
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