Posted by Virginia on Saturday, November 2, 2013 at 4:22pm.
a triangle has sides of length 7 cm ,15cm and x cm. If x is an interger find (i) the minimum value of x (ii) the maximum value of x

maths  Serena, Saturday, November 2, 2013 at 4:29pm
So for a triangle, two sides have to be greater than the largest side. Therefore, if you have three sides 7, 15, and x, you could say that...
a) x is the largest
b) 15 is the largest.
a) If x is the largest side then 7+15 has to be greater than x. 22 has to be greater than x. So x<22. There's the maximum value.
b) If 15 is the largest side, then x+7 has to be greater than 15. So x>8. That is the minimum value.
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