Question

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

Answer 1

well, the base has four sides of 160 meters each, thus its perimeter is 160+160+160+160, or 640 meters.

well, a KILOmeter has 1000 meters, so

`\bf 640\underline{m}\cdot \cfrac{km}{1000\underline{m}}\implies \cfrac{640km}{1000}\implies 0.64~km`