Ladanian Ladanian

29-01-2021
Mathematics

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mhanifa mhanifa

29-01-2021

Answer:

x = 6

Step-by-step explanation:

Similar figures have same ratio of corresponding sides:

ZY/EF = ZX/DF = XY/DE

Substitute:

4 / 8 = 7.5 / 3(x - 1)
3(x - 1) = 2*7.5
x - 1 = 5
x = 6

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