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JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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Application +4 | -1
If the sides of the triangle are p,q,p2+q2+pqp,q,\sqrt {{p^2} + {q^2} + pq}, then the greatest angle is
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Correct option: C
2π3\frac{{2\pi }}{3}
Option C (2π3\frac{{2\pi }}{3}) is correct because the greatest angle is found using the cosine rule.

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