Question

prove that the area of a triangle whose vertices are (t,t-2),(t+2)(t+2)and (t+3,t) is independent of t

Answer 1

Just use the formula.... of

$\frac{1}{2} \times | \: x1 \: (y2 - y3) \: + \: x2 \: (y3 - y2) \: + \: x3 \: (y1 - y2)|$
It will come without the term “t”