What is the volume of the pyramid ?

What is the volume of the pyramid ? 8ft 7ft 7ft a. 56 ft b. 130 2/3 ft c. 196 ft d. 392 ft

Answers

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.

Volume of pyramid is:

130dfrac{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 Atimes h

Volume=

dfrac{1}{3}times 49times 8

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

Hence, Volume of pyramid is:

130dfrac{2}{3} ft^3

V= 64 ft^3

Step-by-step explanation:

The volume of a pyramide is given by the formula

V = 1/3 l*w*h

Given the l = 8  w = 4  and h = 6

V = 1/3 ( 8*4*6)

V = 1/3 ( 192)

V= 64 ft^3

Right Regular Pyramid Surface Area = (½ * Perimeter of Base * Slant Height) + Base Area

= (1/2) * (24 * 9) + 36(1/2) * (24 * 9) + 36= 144 square feet
Source:
http://www.1728.org/volpyrmd.htm

Leave a Reply

Your email address will not be published. Required fields are marked *

Related Posts