One question, thanks
Choices: 945cm^3
1260cm^3
1890cm^3
2520cm^3
Hard to see this, but I believe we have triangular pyramid wih a base area of [14 * 18] / 2 = 126 cm^2 and a height = 30cm
The volume = (1/3) base area * height = (1/3) (126cm^2) (30 cm) = 1260 cm^3