Question

A pyramid has a square base that is 160 m on each side. what is the perimeter in kilometers

Answer 1

1km=1000m 160m=0.160x4=0.64

Answer 2

Keywords:

perimeter, square, base, pyramid, kilometers, side

For this case we must find the perimeter of the base of a square pyramid, whose side of the square measures 160m. In addition, the measure obtained must be converted to kilometers. So, we have by definition the perimeter of a square is the sum of its sides, which is equivalent to
`P = 4l`, where "l" is the side of the square.

If
`l = 160m`, then:

`P = 4 * 160m\\P = 640m`

Thus, the perimeter of the base of the pyramid is 640m.

On the other hand, by definition:
`1Km = 1000m`

By making a rule of three we have:

1Km ---------> 1000m

x --------------> 640m

Where "x" represents the perimeter of the base of the pyramid in Km.

`x = \frac {640 * 1} {1000}\\x = 0.64km`

Thus, the perimeter of the base of the pyramid is 0.64Km

Answer:

The perimeter in kilometers is 0.64