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1

<p>hi, im new, i have a question. In the book (title in title), pg 339, #12,
the question asks: if x is an integer and 2<X<7, how many different triangles are there with sides of legnths 2,7, and x?</p>

<p>Answer is 1</p>

<p>I got 4, aren't there 4 different values for x? (3,4,5,6) so 4 different triangles (2,7,3-2,7,4-2,7,5-2,7,6). </p>

<p>The second question I have is on pg 340, # 15, unfortunatly I can't explain this one because there's a graph. If u have the book, plz help on this one</p>

<p>Ty</p>

2

<p>There is a rule for triangles, if you add up two sides, it must be greater than the third which is why 2 + 6 is the only one greater than 7 which is the third side. So the answer is only 1 x value between 2 to 7 can by used.</p>

3

<p>tyvm! I Neva knew that</p>