if the perimeter a triangle is 36,what is the lenght of the longest side?

Question

perimeter of triangle is 36 cm

Answer 1

Given perimeter of a triangle is 36cm.

Let a,b,c are sides of triangle.

Perimeter of a triangle = a+b+c

If it is a right angle triangle,hypotenuse is a longest side.

we assume sides of triangles are 12cm,9cm,15cm.

Observe then perimeter is 36.

Length of the longest side is 15cm.

If it's not a right angled triangle we can't determine the longest side exact length without giving any other information about triangle.