Question

Coordinates of the vertices of a triangle are P (2, -6), Q (-4, 8), R (-3, -2). What is the area of triangle PQR?

Answer 1

I hope it is helpful for you

Answer 2

area of triangle PQR= (1/2) [x1 (y2- y3 )+x2 (y3-y1 )+x3(y1-y2)]

= (1/2)[2(8+2)-4(-2+6)-3(-6-8)]

=(1/2){20-16+42}

=1/2 × 46

=23