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Download Trigonometry 2 Finding the angle when the sides are
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Trigonometry 2 Finding the angle when the sides are given Reminder (The three rules) O S A H C O H T A Example 1 Step the the sides Step12identify substitute you havevalues been given, known in to and so the formula required the equation 5cm 3cm x Sin x= 3/5=0.6 Using your calculator We need to find the solution to Sin x=0.6 Depending on your calculator you do the following 0.6 2nd sin =36.87o 0.6 inv sin =36.87o 2nd sin 0.6= 36.87o Sin-1 0.6 =36.87o Example 2 This time we have the adjacent and opposite sides given So tan x=9/4=2.25 Using the calculator X=66o
