Q : 13 Using the method of integration find the area of the triangle ABC, coordinates of whose vertices are9
Equation of line joining A and B is
Equation of line joining B and C is
Equation of line joining A and C is
ar(ABC)=ar(ABL)+ar(LBCM)-ar(ACM)
ar(ABC)=8+5-6=7
Therefore the area of the triangle ABC is 7 units.