CD=....cm <RST=.... Beserta cara ya

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  • BC/ST = CD/UT
    2,5/5 = CD/8
    CD=2,5×8÷5= 4 cm

    <ABC= 180°- 120°=60°
    BC/ST = <ABC/<RST
    2,5/5 = 60°/<RST
    <RST= 60×5÷2,5 = 120°

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