Question

a) The area of the triangle formed by the vertices (x1,y1,),(x2,y2,) and (x3,y3)=______
sq. units.
b) The area of the triangle formed by the vertices (x1,y1),(x2,y2) and (0,0)=______ sq.units.​

Answer 1

• If the Vertices of Triangle ABC are A(x₁ , y₁) , B(x₂ , y₂) , C(x₃ , y₃)

Then The Area of Triangle ABC = 1/2 × [x₁(y₂- y₃) + x₂(y₃ - y₁ ) + x₃(y₁ - y₂)]

This Concept Comes Under Co - Ordinate Geometry !!