Question

Help I need help ON THISSSS

Answer 1

ms girll i think you multiply

Answer 2

3. 147
`ft^(3)` 4.
`(160)/(3) \pi`
`ft^(3)`

Explanation:

3. Volume of a square pyramid =
`(base.edge.length)^(2)` ×
`(height)/(3)`

Variables:

V = volume

x = base edge length

h = height

V =
`x^(2)` ×
`(h)/(3)`

x = 7 ft

h = 9 ft

Plug the values in the equation:

V =
`7^(2)` ×
`(9)/(3)`

V = 49 × 3

V = 147
`ft^(3)`

4. Volume of cone =
`\pi r^(2) (h)/(3)`

Variables:

V = volume

r = radius

h = height

V =
`\pi r^(2) (h)/(3)`

r = 8ft /2 = 4 ft (radius is half of the diameter)

h = 10 ft

V =
`\pi 4^(2) (10)/(3)`

V =
`\pi` × 16 ×
`(10)/(3)`

V =
`(160)/(3) \pi`
`ft^(3)`