Question

the sum of the lengths of any two sides a triangle must be greater than the third side. if a triangle has one side that is 15 cm and a second side that is 3cm less than twice the third side, what are the possible lengths for the second and third sides?

Answer 1

@JuanitaM I cant figure this one out either

Answer 2

given side one = 15 cm
let x = third side
side two = 2x-3

Answer 3

side two less than sides 3 & 1
2x-3 < x + 15
2x-x < 15+3
x < 18
AND

Answer 4

side two & side 3 greater than side 1
2x-3 + x > 15
3x - 3 > 15
3x > 15+3
3x > 18
x > 6

Answer 5

it says the second side is between ____blank and____blank cm, and the third side is between ___blank and ____blankcm

Answer 6

possible lengths for side 2 and 3
x > 6 to x <18

using side 3 as x
and side 2 as 2x - 3

X: 7, 8 , 9 , 10 , 11, 12 , 13 , 14 , 15 , 16 , 17
2x-3: 11, 15, 17, 19, 21, 23, 25 ,27, 29 , 31

Answer 7

2nd side is b/w 11 and 31
3rd side is b/w 7 and 17

Answer 8

Did you follow all?