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Most Important Selected Qs for JEE AdvancedMathematicsStraight Lines

Paragraph: Square A B C D has vertices A(1,4), B(5,4), C(5,8) and D(1,8) from a point P outside the square, a vertex of square is said to be visible if it can be connected to P by a straight line that does not pass through square. Thus from any point P , outside either two or three of the vertices of the square are visible. The visible area of P is the area of one triangle or the sum of the area of the two triangle f

Options

  1. A20
  2. B30
  3. C40
  4. D50

Correct answer

A. 20

Step-by-step solution

Similarly area = QBC = 1 2 b h = 1 2 4 4=8

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