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10 April, 13:21

Find the length of DE if triangle ABC is congruent to triangle DEF. Side AB is 3x-6, side DE is x+8 and side EF is 2x+7.

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  1. 10 April, 15:50
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    Because ABC is congruent to triangle DEF then

    AB = DE

    3x - 6 = x + 8

    3x - x = 8 + 6

    2x = 14

    x = 7

    DE = x + 8 = 7 + 8 = 15

    Answer:

    length of DE = 15
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