Coordinate Geometry - Area of Rectilinear Figures

Coordinate Geometry - Area of Rectilinear Figures

Secondary 3

In the diagram, \(OABC\) is a trapezium where \(O\) is the origin.

The coordinates of \(A\) and \(C\) are \((-6, 0)\) and \((3, 6)\) respectively.

  1. State the coordinates of \(B\).
  2. Find the equation of the line \(OC\).
  3. Find the area of trapezium \(OABC\).

Solution:

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Answer:(i) \(B=(0,6)\) (ii) \(y=2x\) (iii) \(27\) square units.

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