Question

A pyramid has a square base that is 160 m on each side. What is the perimeter of the base in kilometers? Question 19 options:

Answer 1

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

Explanation:

Ifl = 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

Answer 2

For this case we must convert from meters to kilometers. By definition we have to:

`1km = 1000m`

The perimeter of the base of the pyramid will be given by the sum of the sides:

`P = 160m + 160m + 160m + 160m = 640m`

We make a rule of three:

1km ----------> 1000m

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

Where "x" represents the equivalent amount in km.

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

Answer:

0.64km