Learning application to calculate the area and perimeter of mathematical quadrilaterals. Contains formulas and also simulations of calculating quadrilateral shapes. The quadrilateral application is an application that is very suitable for junior high school students (age 10-15). The arithmetic simulation is presented in an interesting and concise manner, so that it can help to calculate the area and perimeter of a mathematical quadrilateral. In the application there are 6 kinds of rectangular flat wake material:
★ square
★ rectangle
★ parallelogram
★ rhombus
★ trapezoid
★ kite