3 years ago

Answer correctly for the brainliest answer

Mathematics

1 answer:

Dahasolnce [82]3 years ago

4 0

Similar triangles so AC:BC=AE:DE

15+6=21 = AE

15:12.5=21:?

to get from 15 to 12.5 you divide by 15 and times by 12.5 so do this the to the other side

21/15=1.4

1.4 x 12.5=17.5

So DE=17.5

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