Question

plot the point p(1,0) q(4,0) r(4,3) and s(1,3). find the area of PQRS

Answer 1

√X1(Y2-Y3)+X2(Y3-Y1)+X3(Y1-Y2)
1(0-3)+
$\sqrt{1(0 - 3) + 4(3 - 0) + 4(0 - 0)}$
[tex]1 \times - 3 + 4 \times 3 + 4 \times 0 =-3+12-0=-3+12=9ans


√1(0-3)+4(3-0)+1(0-0)
=1*-3+4*3+1*0
=-3+12+-0
=-3+12
=9ans