Page 34 - Trigonometry
P. 34

2
        The area of the triangle is therefore 58.5 units . To
        calculate the side lengths between  (X, Y) and (E, F),


                                                        2
                                          2
                            √(   −   ) +(   −   )
        The keystrokes for this calculation are (w1),

          s(Q(X)pQ(E))d+(Q(Y)p

                                 Q(F))d


        The first side is  A (-4, 5)  to  B (5, -4),
        r

        X?  z4=   E?  5=

        Y?  5=          F?  z4=n








        The second side A (-4, 5) to  C (8, 6)


        r

        X?  z4=   E?  8=

        Y?  5=          F?  6=n

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