Question

Come help a sister out on 2 geometry questions please

Answer 1

1- question

Data:
width = 6 cm
length = 5 cm
height = 8 cm


First we will find the area of ​​the base that is square, we have:

Ab = 6 * 5
Ab = 30 cm²

Now we will calculate the volume of a square pyramid, we have:
Formula:
`V = (1)/(3) A_(b) *h`

Solving:

`V = (1)/(3) A_(b) *h`

`V = (1)/(3)*30*8`

`V = (240)/(3)`

`\boxed{\boxed{V = 80\:cm^3}}\end{array}}\qquad\quad\checkmark`

Answer:
D) 80 cm³

2- question:

Data:
width = 7 in
length = 7 in
height = 9 in


First we will find the area of ​​the base that is square, we have:

Ab = 7 * 7
Ab = 49 in²

Now we will calculate the volume of a square pyramid, we have:
Formula:
`V = (1)/(3) A_(b) *h`

Solving:

`V = (1)/(3) A_(b) *h`

`V = (1)/(3)*49*9`

`V = (441)/(3)`

`\boxed{\boxed{V = 147\:in^3}}\end{array}}\qquad\quad\checkmark`

Answer:
C) 147 in³