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Allisa [31]
2 years ago
7

Triangles ABC and EDC are similar.

Mathematics
2 answers:
yarga [219]2 years ago
6 0

Answer:

18cm

Step-by-step explanation:

The ratio is given by: 7.5/2.5=3

DE = 6 × 3 = 18 cm

or

DC/CB = x/AB

7.5/2.5 = x/6

3=x/6

x=6×3=18 cm

Anna11 [10]2 years ago
5 0
Answer is 18. You can use triangle similarity

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