Question

The length of two sides of a triangle are 12cm and 15cm. Between what two measures should the length of the third side fall?

Answer 1

length of first side+length of second side>length of third side
15+12> 3rd side
3rd >27

Answer 2

the lengths of third side of a triangle should be less than the sum of other two sides and greater than the other two sides.
so length of third side should be in between sum of 12 and 15 and difference of 12 and 15 .
therefore length of third side is in between
12+15 >length of third side>15-12
=27>length of third side>3