press flag for different triangle area triangle:b*h:2 example:10*5:2 10*5=50 50:2=25 area is 25 perimeter triangle:b+d1(diagonal 1)+d2(diagonal 2)
made this in 10 minutes or less,all project full of math and pen position calculation with math (where to go,and it draws the triangle) special thanks to school so i know how to calculate area and perimeter
