Verified Answer :

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

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