Question

The volume of the figure is 9ft 15ft 15ft 15ft please help fast PLEASE!

Answer 1

Step-by-step explanation:

Formulas.

Square: $V = L \times W \times H$

Square Pyramid: $V = \frac13b^2h$

b = base.

Let's work on the square first.

Substitute the Length, Width, and Height of the square into the formula:

$V=15 \times15\times15$

Solve:

$V=15^{3} =3,375$

Let's work on the square pyramid.

Substitute 225 into the formula, and 9 (height):

$V=\frac{1}{3}(15)^2(9)$

Solve:

$V=\frac{1}{3}225(9)$

$V=\frac{1}{3}(2025)$

$V=675$

Add each volume:

$3,375+675=4,050 ft^{3}$

The total volume of the figure is $4,050 ft^{3}$.