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17 July, 09:30

Triangle ABC and DEF are similar. AB=15 cm, BC=18 cm, and EF=6 cm. What is thr length of DE?

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  1. 17 July, 11:16
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    3 * EF = BC

    so 3 * DE = AB

    DE = AB / 3

    = 15 / 3

    = 5 cm
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