Question

the parameter of a triangle is 42 of its side measure 12.9 and 14.6 find the length of its third side​

Answer 1

Answer

We know that the perimeter of triangle = Sum of all sides.

The perimeter of the triangle=42

So,The two sides of the triangle is 12.9 and 14.6.

We have to find the third side.

In equation

(12.9+14.6)+x =42

(27.5)+x=42

x=42-27.5

x=14.5

So,The third side measures 14.5.