Question

Two sides of a triangle have lengths 5 and 12. Which inequalities represent the possible lengths for the third side, x?

Answer 1

Any side of a triangle must be less
than the other two sides added together, so

a < b+c, b < a+c, and c < a+b
where a and b are the given length of the two sides and c is the length of the third side

source: http://www.algebra.com/algebra/homework/Triangles/Triangles.faq.question.253712.html

Answer 2

so how would i solve it

Answer 3

check out the site there is an example there :)

Answer 4

ok i still dnt understand

Answer 5

let a=5, b=12 and c=length of the third side
Using these formulas we compute for c.
a < b+c
b < a+c
c < a+b

5<12+c -> c=-7
12<5+c -> c=7
c<12+5 ->c=17

since there is no negative length we use c=7 and disregard c=-7
so the range is
7<c<17
or in your case
7<x<17

Answer 6

oh okay thankx alot

Answer 7

welcome :)