Question

please, answer question no.2 in this picture:

Answer 1

Coz by dividing an irregular figure into a geometric fig makes its easy for us to solve the question as we re much familiar with those geometric figures and can solve them using the proper formulas rather than beating the Bush on such irregular figures..
Hope it helps u

Answer 2

since all sides are not same. so we can not put an appropriate formula to calculate the area and perimeter of the figure.therefore,we separate them into regular figures.