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20 September, 11:15

Triangle ABC is similar to triangle DEF. The length of AC is 10 cm. The length of BC is 15 cm. The length of DF is 6 cm.

What is the length of EF?

12

6

10

9

+2
Answers (1)
  1. 20 September, 12:44
    0
    9 cm

    Step-by-step explanation:

    Side lengths of similar triangles are proportional. BC is 1.5 times the length of AC, so EF will be 1.5 times the length of DF:

    1.5·6 cm = 9 cm
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