This calculator calculates the lateral area, surface area using base side (a), base width (b), top side (c), height (h) values.
Formula:
F = (((a + c) / 2)√(4h2 + b2)) + (b √(h2 + (a - c)2))
SA = F + ab
a = Base Side
b = Base Width
c = Top Side
h = Height
F = Lateral Area
SA = Surface Area