Question

if the volume for 3d pyramid a is 400cm3 and the volume for 3d pyramid b is 800cm3 ,how many time bigger is the volume of pyramid b than pyramid a

Answer 1

It would just be Pyramid B divided by Pyramid A which is 800/400 which is 2.

Answer 2

2 times.

Explanation:

We have been given that the volume for 3d pyramid a is
`400\text{ cm}^3` and the volume for 3d pyramid b is
`800\text{ cm}^3`.

To find the volume of b is how many times greater than volume of pyramid a we will use proportions.

`\frac{\text{Volume of pyramid b}}{\text{Volume of pyramid a}}=\frac{800\text{ cm}^3}{400\text{cm}^3}`

`\frac{\text{Volume of pyramid b}}{\text{Volume of pyramid a}}=2`

`\frac{\text{Volume of pyramid b}}{\text{Volume of pyramid a}}*\text{Volume of pyramid a}=2*\text{Volume of pyramid a}`

`\text{Volume of pyramid b}=2*\text{Volume of pyramid b}`

Therefore, the volume of pyramid b is 2 times the volume of pyramid a.