Question

Find the area of a triangle having vertices as x(4, – 3), y(– 6, – 3) and z(0, – 3). Justify your answer.

Answer 1

Area of a triangle

$= \frac{1}{2} ( x_{1} (y_{2} - y_{3}) + x_{2}( y_{3} - y_{1}) + x_{3}( y_{1} - y_{2})$

• the three points are collinear that is they lie on the same line . therefore the area is zero