Question

Two sides of a triangle measure 40 cm and 30cm. Which of the following could NOTbet the measure of the third and longest side?

Answer 1

For a traingle, sum of two sides of triangle is always greater than the third side of triangle.

The sum of two sides of triange is,

`40+30=70`

So length of thir side of triangle must be less than 70.

From the options, it can be observed that 70 is not possible length of third side of riangle.

So 70 cm is answer.