Module 1: 
Metric/Metric and Metric/English conversions
Basic Trigonometry

METRIC/METRIC CONVERSIONS

Answers to exercises:
  1. 5.6 cm = 56  mm
  2. 2.67 cm = 26.7 mm
  3. 0.356 m = 356 mm
  4. 4 m = 400 cm
  5. 3.4 mm = 0.34 cm
  6. 5.6 cm = 0.056 m
  7. 2.67 cm = 0.0267 m
  8. 0.356 m = 35.6 cm
  9. 3.4 cm = 34 mm
  10. 5 mm = 0.005 m
  11. 5 cm = 0.05 m
  12. 4.33 mm = 0.00433 m
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METRIC/ENGLISH CONVERSIONS

Answers to exercises:
  1. Convert 45 cm to feet.
    2. 45 cm      1 in
         1      2.54 cm
    45/2.54 = 17.7165... inches / 12 = 1.476... feet


  2. If a temple is marked 6.75 inches, what mm length temple would be the equivalent?
6.75 in   2.54 cm
1        1 in
(6.75)(2.54) = 17.145 cm = 171.45 mm = 170 mm temples
  1. A woman's laptop screen is 30 in away.  How far is that in meters?
30 in      2.54 cm
1              1 in
(30)(2.54) = 76.2 cm = 0.762 m
  1. A lens brings light to a focus at 2 feet.  How long is that length in meters?
2 ft = 24 in
24 in    2.54 cm
1        1 in
(24)(2.54) = 60.96 cm = 0.6096 m
  1. Convert 3.26 meters to feet.
3.26 m = 326 cm
326 cm       1 in
    1          2.54 cm
(326)/(2.54) = 128.346... in/12 = 10.69... ft
  1. The glasses wearer's frame has 155 mm temples.  What temple length in inches would be the equivalent in the safety frame temple?
155 mm = 15.5 cm
15.5 cm        1 in
       1         2.54 cm
(15.5)/(2.54) = 6.102.... in = 6 or 6.25 inch





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