Respuesta :

1) The volume for a rectangular prism is Length x Width x Height
This is the formula:

V = L x W x H

Length: 4 cm
Width: 4 cm
Height: 9 cm

V = 4 x 4 x 9
V = 16 x 9
V = 144 cm3

2) The Volume for a triangle is: V = L x W x H / 2  (length times width times height divided by 2) 

Length: 8 cm
Height: 6 cm
Width: 4 cm

V = (8 x 6 x 4) / 2       (8 times 6 times 4 divided by 2)

V = 192 divided by 2
V = 96 cm3