58 Exercise Answers: Module 21 — Technical Mathematics

22

Exercise Answers: Module 21

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Converting Units of Area

We may occasionally violate the rounding rules in these answers so that you can be sure that your answer matches ours.

  1. 43,560\text{ ft}^2
  2. 4,840\text{yd}^2
  3. 144\text{ in}^2
  4. 162\text{ ft}^2
  5. 8.3\text{ ac}
  6. 180,000\text{ cm}^2
  7. 4\text{ ha}
  8. 376\text{ km}^2
  9. 2,000\text{ ha} (to one sig fig) or 2,\overline{0}00\text{ ha} (to two sig figs)
  10. 6\overline{0}0\text{ cm}^2 (to two sig figs)
  11. 75,300\text{ ft}^2
  12. 154\text{ in}^2
  13. 38.5\text{ in}^2
  14. 4 to 1
  15. 54\text{ cm}^2
  16. 6\text{ cm}^2
  17. 9 to 1

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