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hammer [34]
3 years ago
15

I used the pythagorean theorem. Need a second opinion

Mathematics
1 answer:
uysha [10]3 years ago
7 0

Answer:

A.

Step-by-step explanation:

EF^2=18^2-12^2

EF^2=324-144

EF^2=180

EF=root 180

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