Trapezoidal Shape Volume (equal slopes at opposite sides)
L
2 = L
1+
2D/tan α
W
2 = W
1+
2D/tan β
V =
D/6
(2 W
1 L
1+ 2 W
2 L
2+ W
2 L
1+ W
1 L
2 )V = W
1 L
1 D + (
W1/tan α
+
L1/tan β
) D
2 +
4/3 (tan α)(tan β)
D
3 • To see proof of equations, click .
Disclaimer:I do not claim in any way that these calculators are free of errors - I develop them as a hobby - so use them at your own discretion. If you encounter an error, please let me know .