Question

Please help me geometry

Answer 1

B

Explanation:

The volume (V) of a pyramid is calculated as

V =
`(1)/(3)` area of base × height, hence

V=
`(1)/(3)` × 64 × 8 ≈ 170.7 ( to 1 dec. place )

Answer 2

For this case we have that by definition, the volume of a pyramid is given by:

`V = \frac {1} {3} * A_ {b} * h`

Where:

`A_ {b}:` It is the area of the base

h: It's the height

According to the data we have:

`A_ {b} = 64mm ^ 2\\h = 8mm`

Substituting:

`V = \frac {1} {3} * 64 * 8\\V = \frac {512} {3}\\V = 170.666666667`

If we round up we have that the volume is
`170.7 \ mm ^ 3`

Answer:

Option B