Question

If the lengths of two sides of a triangle are 5 and 9, respectively, which of the following could be the length of the third side of the triangle?

a. 3
b. 5
c. 8
d. 15

Answer 1

You can use the Pythagoras theorem, and else, where is the picture?

Answer 2

no picture...

Answer 3

Okay, then do 5^2 + 9^2 = c^2

Answer 4

(AKA Pythagoras Theorem)

Answer 5

doesn't work..

Answer 6

sum of two sides must greater than the 3rd one
a+b >c
b+c >a
a+c> b

Answer 7

c^2=25+81 right?

Answer 8

a+b<c<a-b

Answer 9

well there is a basic for triangles the sum of the shorter sides must be greater than the longest side...

so if 9 is the longest and x is a short side you can say

5 + x > 9

if x is the longest side then

5 + 9 > x

hope it helps

Answer 10

a = 1st side
b= 3rd side
c = 3rd sides

Answer 11

You can do the 3rd side has to be bigger then the other sides

Answer 12

got it thanks @Nnesha

Answer 13

yw

Answer 14

So wait I thought I had it but I don't

Answer 15

it can be all 4 options?

Answer 16

no

Answer 17

only B and C

Answer 18

Why?

Answer 19

first option
a = 3 b = 5 c = 9
so a +b > c
3+ 5 > 9 is it correct?

Answer 20

it is the reason that @campbell_st mentioned above

Answer 21

8 is greater than 9 ?

Answer 22

no

Answer 23

hey 15 works too right?

Answer 24

but if you take 15,
5+9 < 15
so it doesnt work

Answer 25

always any of the two sides should be equal or greater than the other

Answer 26

ohhhhhhhh got it

Answer 27

:O what happened to ur post http://prntscr.com/7wm14b ?

Answer 28

http://i.imgur.com/ASDEMnt.png and i got mod power :o -.-

Answer 29

lolol cool teehee

Answer 30

do you see this weird thing http://prntscr.com/7wm23v ?

Answer 31

nvm link isn't working

Answer 32

yea on the first picture i do

Answer 33

ohhh weird ..... :/

Answer 34

wow I didn't know you can have level 222 that's like equivalent to super saiyan level on here lmao

Answer 35

i was trying to delete ur post but eehh that was a dream

Answer 36

lmaoo hey you can't delete me !!!! only i delete me!!!!!

Answer 37

lo alright gO_Od luck!

Answer 38

i tried to close it but it's not working o.O

Answer 39

see ..

Answer 40

ohh closed congrats :D

Answer 41

there u goooo I refreshed the page and it worked

Answer 42

thats what i did ..

Answer 43

hmmm you know what?.... honestly i really love openstudy but the only thing i hate is that it lags wayyyyyy too much

Answer 44

ik but yeah it's oka nothing is perfect so ..

Answer 45

yea