To split the irregular quadrilateral into a rectangle and a right triangle, you first find the dimensions of each shape.
The rectangle has a length of 857 and a width of 43, so its area is 857 * 43 = 36,851 square units.
For the right triangle, one leg (altitude) is 865 - 43 = 822, and the other leg is 857. Applying the formula for the area of a triangle = (1/2)*base*height
the area of triangle = (1/2)*822*857 = 352,227 square units.
Adding the areas of the rectangle and the right triangle together, the total area of the irregular quadrilateral is 36,851+352,227=389,078 square units.
It is quite difficult to solve such type of problem. Especially you need expert help, whenever you experience such type of problem in your assignment. I would suggest you to visit MathsHomewporkHelp.com for your assignment solution. You can also contact them at +1 (315) 557-6473.