Question

What is the volume of the pyramid ? 8ft 7ft 7ft

A. 56 ft
B. 130 2/3 ft
C. 196 ft
D. 392 ft

Answer 1

Answer:

V= 392 ft^3

Step-by-step explanation:

We know that the volume V of a pyramid is one-third the area of the base B times the height h.

If h= 8ft and areabase = 7ft x 7ft = 49 ft^2.

Then, the Volume V is:

V = areabase x height = 49 ft^2 x 8ft = 392 ft^3

So the solution is option D.

Answer 2

Answer:

Volume of pyramid is:

$130\dfrac{2}{3}\ ft^3$

Step-by-step explanation:

We know that the volume V of a pyramid is one-third the area of the base times the height h.

First we find the area of base let it be A.

A=7×7 ft²

A=49 ft²

Volume of pyramid=

$\dfrac{1}{3}\times A\times h$

Volume=

$\dfrac{1}{3}\times 49\times 8$

$= \dfrac{392}{3}\\ \\=130\dfrac{2}{3}\ ft^3$

Hence, Volume of pyramid is:

$130\dfrac{2}{3}\ ft^3$