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tolong dong pliss perlu bet
tolong dong pliss perlu bet

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  • 2. a. AOB = 2. BCA = 2.25 = 50
        b. OAB =  (180 - 50) : 2  = 65

    3. a. 90 + x + 2x = 180
                       3 x   =   90
                          x   = 30
        b. PRQ = 2x   = 60

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