The value of the length of the third side is 9,7,11. The correct option is A, D, F.
Given that triangle has two sides of lengths 7 and 12.
As we know that the 3rd side of a triangle needs to be greater than the difference between the given two sides' length and less that the sum of the given two sides length.
A polygon with three edges and three vertices is triangle. It is one of the most common shapes in geometry. A triangle with vertices A, B, and C is denoted ABC.
According to this,
x>(12-7)
x>5
and
x<(12+7)
x<19.
Hence, the length of third side be when the two side of triangle is 7 and 12 is 9,7,11.
Learn more about the triangle from here brainly.com/question/1451975
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