NCERT Exercise 4.2 Q5 - Determinants

Question: If the triangle with vertices (2,-6),(5,4),(k,4) has area 35 sq units, then k is (A) 12 (B) -2 (C) -12,-2 (D) 12,-2.

Answer: (D) 12, -2.

Full step-by-step NCERT solution with diagrams on Something by Zero.

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