All tip submissions are carefully reviewed before being. Since Herons formula relates the side lengths perimeter and area of a triangle you might need to answer more challenging question types like the following example. It is called Herons Formula after Hero of Alexandria see below Just use this two step process.
Consider a right triangle ABC right angled at vertex C with sides as a b and c where a and b are legs and c is the hypotenuse.
Calculate s half of the triangles perimeter. S 2a b2. Herons formula is obtained by setting the smaller parallel side to zero. Herons formula is also a special case of the formula for the area of a trapezoid or trapezium based only on its sides.