This formula develops old theories to facilitate the solution The use of geometric spaces is very important in our live. In ancient times it took many steps to resolve the area of the triangle, but in this research, it will be easy to solve the area of triangle with one side and two angles only and this saves time , effort and thinking. In Old times, solving rhombus area took a number of difficult steps, but in this research it will be easily solved..

Generally, rhombus area is calculated by half multiplied the lengths of the two diagonals, but in but in this research area is calculated in terms of one diagonal length and an angle only Parallelogram area is equal to multiplication of the base length by the perpendicular , but the new method uses diagonal length and angles of the diagonal only Area of the rectangle equal multiplication of length and width, Using the new method diagonal length and angles of the diagonal are used only Uses

1- triangle area in a new method 2- parallelogram area a new method 3 – rectangle area in a new method 4 - rhombus area in a new method 5 - square area in a new method