Matematika

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nomor 25 kya gimana.. tolong
nomor 25 kya gimana.. tolong

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  • ( 2x + 20 ) + 5x + 3x = 180
    10x + 20 = 180
    10x = 180 - 20
    10x = 160
    x = 16

    Sudut COD = 3x
    3x = 3( 16 ) = 48° ( B )

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