Finding Area of a Triangle Using Coordinates. Area of a triangle with vertices are 00 P a b and Q c d is. Ii Take the vertices in counter clock-wise direction.
This formula allows you to calculate the area of a triangle when you know the coordinates of all three vertices.
Lets do this without having to rely on the formula directly. Hence the area of the given triangle is 15 cm 2. Area of the triangle 12 square units. For Heron formula see Calculator of area of a triangle using Heros formula.