How to calculate area of a qudarilateral using formula
Answers
The area of a quadrilateral depends on the type of quadrilateral it is.
If the figure is a regular quadrilateral there are some formulas for the areas that can be used as given below.
Square = side^2
Rectangle = L*B
Parallelogram = L*D. (D=distance between the parallel sides}
Trapezium = (a+b)*D/2
Rhombus = D1*D2/2. (D1 and D2 are the diagonals)
Kite = D1*D2/2. (D1 and D2 are the diagonals)
If the figure is an irregular quadrilateral then draw a digonal and find the areas of the two triangles so formed and add them together. There are some formulas for the areas of the triangles that can be used as given below.
Area = bh/2
Area by Heron’s formula = [s(s-a)(s-b)(s-c)}^0.5 where s =(a+b+c)/2
Area of equilateral triangle = s^2(3^0.5)/4
Area = (1/2)ab*Sin C