Question

Which of the following could be the lengths of the three sides of a triangle?
A.16, 18, 30
B.5, 5, 11
C.20, 40, 60
D.6, 6, 12

Answer 1

use pythagoras theorem

Answer 2

To form a triangle :
sum of any two sides must be greater than the third side

Answer 3

consider option D :

D.6, 6, 12

since 6+6 is not greater than 12, these lengths cannot form a triangle

Answer 4

see if you can check other options similarly

Answer 5

It needs to know what 3 sides could make a triangle .

Answer 6

for making a triangle tthe sum of two sides should be equal to or greater than the third side

Answer 7

i know but i cant figure it out, but thank you for the help (:

Answer 8

wlcm

Answer 9

like option c
20, 40 ,60
take two side
20, 40 3rd side = 60 sum = 20+40=60
20, 60 3rd side =40 sum =20+60=80
40, 60 3rd side = 20 sum = 40+60=100
in any of 3 combination if atleast one combination is their sum of ehose 2 side > 3rd side than it can form triangle ..similarly try for others