Answer:
B
Explanation:
volume = length x width x height
For the top half i use the formula for the area of a triangle (area = base x height ÷ 2), which results in 45. times it 10 and you have 450³ which is the volume of the top part.
For the bottom half it is just 10 x 10 x 10 = 1000³
450³+1000³=1450³