14101992 wrote:
In acute angle triangles all angles in the triangle should be less than 90.
The maximum length of x can be when it is the hypotenuse of the triangle.
So, x= sqrt(12^2 + 19^2) = 22.5 (approx)
The maximum length of x can be when side of length 12 is the hypotenuse of the triangle.
So, x = sqrt (19^2 - 12^2) = 14.7(approx)
So, x>14.7 and x<22.5.
Hence, possible values for x can be 15,16,17,18,19,20,21 and 22. Total 8 values.
Answer D.
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P.S. Don't
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