Question

which of the following sets of numbers could represent the lengths of the sides of a triangle?
a. 2,2,5
b. 3,3,5
c. 4,4,5
d. 5,5,15

Answer 1

use the triangle inequality

Answer 2

i don't know how to do that

Answer 3

In mathematics, the triangle inequality states that for any triangle, the sum of the lengths of any two sides must be greater than the length of the remaining side (and, if the setting is a Euclidean space, then the inequality is strict if the triangle is non-degenerate).[1][2]

-wikipedia

Answer 4

so add two sides in each option and see whether the result surpasses the length of the other side

Answer 5

b surpasses the lenght of the other side

Answer 6

how about c ?

Answer 7

it's equal ??

Answer 8

how ?

Answer 9

4+4=8

Answer 10

8=8

Answer 11

8=8 ??the other side is 5 ?

Answer 12

no

Answer 13

why ?

Answer 14

4,4,5 i dont see any side of length 8 ?

Answer 15

there isn't any answer like that

Answer 16

i am asking if c is possible using triangle inequality ..dont look at options

Answer 17

i think yes
i don't really know

Answer 18

but i looked in the internet and inequality triangles are