Question

what is the area of the triangle formed by points (x1,y1),(x2,y2) and (x3,y3)

Answer 1

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

Answer 2

• 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 !!