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ABC is shown . D is a point on AB,AC =7, AD=6, and , BC=18.

ABC is shown . D is a point on AB,AC =7, AD=6, and , BC=18.-example-1

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ok

AC = 7

AD = 6

BC = 18

It must be 12, because the sum of two sides of a triangle is higher than the other side.

And 6 + 5 = 11

AB + AC = 11 + 7 = 18

User Ivan Belonogov
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