Answer:
Given, the vertices of a triangle \[(t,t-2),(t+2,t+2)\] and \[(t+3,t)\] \[\therefore \] Area of the triangle \[=\frac{1}{2}|[t(t+2-t)+(t+2)(t-t+2)+(t+3)(t-2-t-2)]|\] \[=\frac{1}{2}|(2t+2t+4-4t-12)|\] \[=\frac{1}{2}|-8|=4\] sq. units which is independent of t Hence Proved.
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