Q11 of 23 Page 330

The area of triangular region formed by three points (0, 4), (0, 0) and (–6, 0) is

If we plot these points roughly on the coordinate axis we can see that it’s a right angled triangle with base = 6 units and height = 4 units



Thus, area = × base × height


⇒ area = × 6 × 4 = 12 unit2


Another method is to use the formula.


Area = × [x1(y2 – y3) + x2(y3 – y1) + x3(y1 – y2)]

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