Can someone please help me with this I have 5 days of school left. (running out of time)
Determine the range of possible side lengths of the third side AB of ABC from greatest to least.

(AB has the line above it) ( before ABC there's a small triangle)

Question

Can someone please help me with this I have 5 days of school left. (running out of time)
Determine the range of possible side lengths of the third side AB of ABC from greatest to least.

(AB has the line above it) ( before ABC there's a small triangle)

keybox · Answer

attachment

keybox · Answer

@mathstudent55

calculusxy · Answer

Any side of the triangle must be less than the other two sides. 

Let's think of a = 10 and b = 8. c = ? 

$a < b + c$
$10 < 8 + c$
$2 < c$

$b < a + c$
$8 < 10 + c$ 
$-2 < c$

$c < a + b$
$c < 10+8$
$c < 18$

Range must be $-2 < c < 18$

keybox · Answer

so the answer would be a<x<b?
@calculusxy

calculusxy · Answer

No. It would be $-2 < c < 18$

keybox · Answer

Okay my answer box looks like this I feel like I'm not on the same page. 

_<x<_
So do I write it like this?  -2<x<18?

calculusxy · Answer

Yes

keybox · Answer

Okay thanks , I thought It was supposed to be letters like a b or c

calculusxy · Answer

It's just variables, so you can replace it with whatever you'd like (unless they specifically tell you in the directions).

keybox · Answer

Oh well they didn't tell me wether to use numbers or letters.