Question

1 triangle side length is 2 and the other one is 2. What is the 3rd side length? My choices are 3,4, and 5.

Answer 1

It's either a equilateral or right triangle.

Answer 2

you may use this :-
\(\large \text{third side must always be less than sum of the other two sides}\)

Answer 3

since you're given two sides of lengths :- 2, 2
add them, : 2+2 = 4

Answer 4

So, third side must be less than 4.
look at ur choices, which one is less than 4 ?

Answer 5

I'm kinda confused. I thought we were supposed to square them?

Answer 6

see my first reply

Answer 7

We cannot use squaring here cuz, squaring is allowed oly in Right triangles.

Answer 8

my first reply is also called 'triangle inequality theorem'

Answer 9

Lololol still confused. I did this : 2x2=4 +2x2=4 =8. My choices I may pick from are 3,4, and 5. And I squared each of those and they are all greater than 8.

Answer 10

OHHHHHHH I GET IT NVM

Answer 11

we dont need to all that circus :)
did u take time to read my replies above ? :)

Answer 12

we just need to add the side lengths 2+2 = 4
Since, 3rd side must always be less than this sum, 3rd side < 4
u have oly one option satisfying this inequality !

Answer 13

glad to hear u get it ! :D