Matematika

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Kesebangunan segitiga
Kesebangunan segitiga

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  • AT/ST = AB/X
    7/6 = 14/X
    X = 14×6/7
    X = 12

    AS/ST = AR/RB
    y/6 = (5+y)/12
    12y = 6(5+y)
    12y = 30 + 6y
    12y - 6y = 30
    6y = 30
    y = 30/6 = 5

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