<span>Let x = third side Using the Triangle Inequality theorem which states that the sum of two sides of a triangle must be longer than the third side and the difference of the two sides is the lower limit of the third side, the answer to your question is that the third side must be between 3 and 13, or written using inequalities, 3 < third side (or x) < 13 is the range.</span>
Hello, As I said in last message, it exist an triangular inequality that is seen in Europe! An pupil of 16 years old should know it!!! If a,b,c are the sides of a triangle it MUST exist these equality: each side must be less then the sum of the others sides.
1)a<b+c 2)b<a+c 3)c<a+c
In the way: 5<8+x ==> x>-3 already done 8<x+5 ==>x>3 x<5+8==>x<13 thus 3<x<13
Did you enjoy all these words Melek, whose are written for nothing. It is only bla-bla in english having nothing to do with a mathematic demonstration.
11 because -7 subtracted by 4 add kore to the 7 so think of it this way -7 is a bad guy and 4 is a bad guy to because its a subtraction so if both bad guys combine you get 11 because a negative with negative makes a positive so its 11
