Determine whether these three side lengths will form a triangle: 6 cm, 8 cm, and 10 cm.(1 point)

Responses

They cannot form a triangle because the sum of any two of the side lengths is greater than the length of the third side.
They cannot form a triangle because the sum of any two of the side lengths is greater than the length of the third side.

They cannot form a triangle because the sum of any two of the side lengths is less than the length of the third side.
They cannot form a triangle because the sum of any two of the side lengths is less than the length of the third side.

They will form a triangle because the sum of any two of the side lengths is greater than the length of the third side.
They will form a triangle because the sum of any two of the side lengths is greater than the length of the third side.

They will form a triangle because the sum of any two of the side lengths is less than the length of the third side.

1 answer

To determine whether the side lengths 6 cm, 8 cm, and 10 cm can form a triangle, we can use the triangle inequality theorem. According to this theorem, for any three side lengths \(a\), \(b\), and \(c\), the following conditions must be met:

  1. \(a + b > c\)
  2. \(a + c > b\)
  3. \(b + c > a\)

Let's check these conditions for the given side lengths:

  1. \(6 + 8 = 14 > 10\) (True)
  2. \(6 + 10 = 16 > 8\) (True)
  3. \(8 + 10 = 18 > 6\) (True)

Since all three conditions are satisfied, the side lengths will form a triangle.

Thus, the correct response is:

They will form a triangle because the sum of any two of the side lengths is greater than the length of the third side.