Question

urgent help needed pls help

Answer 1

draw it using scale, compass etc..if these lines form a triangle...
atleast its not a right angle triangle

Answer 2

know how to draw using compass?

Answer 3

or you can tell by looking at the longest side and if the sum of the other 2 sides is not longer than the longest side then it can not form a triangle because if it were the same length it would just make a straight line and it they equal less then the end points of the line segments will not touch so its not a triangle

Answer 4

since 5+9<15 implies no triangle

Answer 5

9+5 has to be more than 15