Question

Find the area of the triangle whose vetics are (2,3),(-1,0),(2,-4)

Answer 1

The answer to the question is as follows.....hope is helps :)

Answer 2

The area of a triangle with co-ordinates (x1,y1),(x2,y2) and (x3,y3) is proven to be cyclic sum of [x1 (y2-y3)/2]

so the area of our triangle is (1/2)(2*(0+4)+(-1)*(-4–3)+2*(3–0))

=(1/2)(8+7+6)=21/2