Question

I really need help soon please :)

Answer 1

Volume of the pyramid = 396
`\text{km}^3`

Solution:

Base of the triangle (b) = 9 km

Height of the triangle (h) = 12 km

Base area of the triangle (B) =
`(1)/(2) bh`

`$=(1)/(2)*9*12`

Base area of the triangle (B) = 54 km²

Height of the pyramid (H) = 22 km

Volume of the pyramid =
`(1)/(3)BH`

`$=(1)/(3)*54*22`

= 396
`\text{km}^3`

Volume of the pyramid = 396
`\text{km}^3`

Hence the volume of the pyramid is 396
`\text{km}^3`.