Page 94 - WCS - Electrical
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WORKSHOP CALCULATION & SCIENCE - CITS


            Assignment

           Convert into Degree

           1  12 Radian
           Convert into Radians
           2  78°
           3  47°20’

           4  52° 36’ 45”
           5  25° 38”
           Convert into degree, minute and seconds
           6  46.723°
           7  68.625°
           8  0.1269 Radians

           9  2.625 Radians
           10 3/5 Radians


            Trigonometry - Trigonometrical ratios


           Dependency
           The sides of a triangle bear constant ratios for a given definite value of the angle.  That is, increase or decrease
           in the length of the sides will not affect the ratio between them unless the angle is changed. These ratios are

                                                                               BC AC BC     AB   AB      AC
           trigonometrical ratios.  For the given values of the angle  a  value of the ratios   ,   ,    ,    ,    and   do
                                                                               AB AB AC     BC   AC      BC
           not change even when the sides AB, BC, AC are increased to AB’, BC’ and AC’ or decreased to AB”, BC” and AC”.
           For the angle
           AC   is the hypotenuse

           AB   is the adjacent side
           BC   is the opposite side.
           The ratios





























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                                            CITS : WCS - Electrical - Exercise 7
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