Question 1182180
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The same way you perform more familiar conversions between units....<br>
Example 1: convert 3 hours to minutes:<br><pre>
              60 minutes
   3 hours * ------------ = 180 minutes
                1 hour<br></pre>
Example 2: convert 440 yards to miles:<br><pre>
                  1 mile
   440 yards * ----------- = 440/1760 miles = 1/4 mile
               1760 yards<br></pre>
Your example: convert 1 square inch to circular inches:<br><pre>
                       1 circular inch
    1 square inch * ---------------------- = 1/0.7854 circular inches
                     0.7854 square inches<br></pre>
Use a calculator to get approximately 1.2732.<br>