Given that the triangle ABC is equal to the triangle DAF, ab = 2, AC = 4, the circumference of the triangle DEF is even, then what is the length of ef
Triangle ABC should be equal to triangle def, then AB = de = 2
AC=DF=4
From triangle to trilateral relation
The side length of EF ranges from 4-2 = 2 to 4 + 2 = 6
Because de + DF + EF is even
So EF is 4
Hope to help you
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