Question

  A soccer field is 400 ft long and 150 ft wide. What is the field’s dimension in meters and its area in square centimeters?

Answer 1

(a)

$$Length=400\ ft\cdot\dfrac{0.3048\ m}{1\ ft}=121.92\ m,$$ $$Width=150\ ft\cdot\dfrac{0.3048\ m}{1\ ft}=45.72\ m.$$

(b)

$$Area=Length\cdot Width,$$ $$Area=400\ ft\cdot150\ ft=6\cdot10^4\ ft^2\cdot(\dfrac{30.48\ cm}{1\ ft})^2,$$ $$Area=5.6\cdot10^7\ cm^2.$$