The area of an arbitrary triangle can be computed using the formula
Area = √s(s-a)(s-b)(s-c),
Where a, b and c are the lengths of the sides, and s is the semiperimeter:
s = (a+b+c)/ 2
Write a program in visual basic that calculates the area of a triangle.
If the three sides a, b and c entered do not make a triangle send a message out to the screen that the data entered was invalid.
Use textboxes, labels and command buttons to implement the program.