Question

1. Find the area of the triangle formed by the points (1-1).7-4.6) and
(-3,-4)

Answer 1

area of tingle=1/2(X1(y2-y3)+x2(y3-y1)+X3(y2-y3))

=1/2(1(6+5)-4(-5+1)-3(-1-6)

=1/2(11+16+49)

=1/2(76)

=38 units