Ali has molds to make ice cubes in a the shapes shown below. Ali says the volume of ice in shape 1, the rectangular pyramid, is three times the volume of ice in shape 2, the triangular pyramid. Is ali correct?

20

10

Two times as much

Is not.

Step-by-step explanation:

Shape 1 formula: 1/3(l)(w)(h) becomes 1/3(4)(3)(5) = 20.

Shape 2 formula: 1/3(1/2 B H1)H2 which becomes 1/3(1/2 x 4 x 5)3 = 10

Shape 1 is twice as much as 10 because 10x2=20

Ali said three times as much which is wrong