فدان : قيراط : سهم

The program calculates the area of ​​the triangle unit per square meter in terms of lengths Ribs whereby the law

0.5 ^ ((AREA = (S * (S - A) * (S - B) * (S - C

Where A, B and C are the lengths of sides of the triangle

A + B + C) * 0.5 = S)

He then transferred to the space unit per acre and carat and arrow

Where per acre = 4200.83 square meters