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JEE Main 2019 Mathematics question

MathematicsThree Dimensional GeometryJEE Main 2019

The vertices B and C of ΔABC lie on the line, such that BC = 5 units. Then the area (in sq. units) of this triangle, given that the point A(1, −1, 2), is:

Answer: (B)

Solution

Distance of A from the line = ; area = ½ ·

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Question ID VK-009832