Question

 2) The length of two sides of a triangle are 12 cm and 15 cm. The length of the third side of the
triangle should fall between which two numbers?

Answer 1

Answer:

Here in the question it is given that the lengths of two sides of a triangle are 12cm and 15cm. Since, the sum of lengths of any two sides in a triangle should be greater than the length of the third side for the formation of a triangle. Therefore, the third side should be less than 12+15=27cm.

Answer 2

The length of a side must be less the sum of the other two sides and more than the difference between the other two sides. Hence, the third side, has to be more than (15-12) = 3 cm. Also it has to be less than (15+12) = 27 cm.