SOLUTION: the lengths of the sides of a triangle are 11cm, 15cm, and k cm, where k is an integer. For how many values of k is the triangle acute?

Question 919082: the lengths of the sides of a triangle are 11cm, 15cm, and k cm, where k is an integer. For how many values of k is the triangle acute?
Answer by josgarithmetic(39621) (Show Source): You can put this solution on YOUR website!
For HOW MANY VALUES of k?

,

Also need to apply this to the two other sides.
and

Not so much of how many values of k; but more important, which values of k.
Important rule here is .

(1)

(2)

(3)
... k must not be negative.

k can be any value such that

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