1. Write a program to evaluate each of the formulas. (n=3.14) 

2. All variables should be able to be changed by the user.

3. Place each formula\'s components in a groupbox

4. 3 buttons, each named after their formula will, when clicked make its groupbox visible. Leaving the others formula inputs not visible.

5. The formula buttons should clear any data before making its groupbox visible.

A. Area of a Trapezoid: 5(x1 + x2)h x1 = 7.2 x2 = 10.6 h 3.4 Expected Answer: 30.26 B. Surface Area of a Cylinder: S = 210 * r2 + 27 (r* h) Expected Answer: 344.58 r= 5.9 h = 3.4 C. Volume of a Sphere: r=6.3 4 V II T Expected Answer: 1046.86