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17-03-2021
Mathematics

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if BCD ~ GEF, find BD

if BCD GEF find BD class=

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KurdishPotato KurdishPotato

17-03-2021

Answer:

19

Step-by-step explanation:

if the triangles are similar then EG/BC = FG/BD

51/(x+4) = 57/(2x-7) cross multiply expressions

102x - 357 = 57x + 228

102x - 57x = 228 + 357

45x = 585 divide both sides by 45

x = 13

BD = 2x -7 and 13×2 - 7 = 19

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