An isosceles triangle has 2 equal sides and 1 different side.
The perimeter is 32 cm and the 2 equal sides together measure 18 cm.
The perimeter of a triangle is all three sides added together:
Perimeter = Equal side + Equal side + Third side
This can be written as:
Perimeter = (Both equal sides together) + Third side
Substituting the known values:
32=18+Third side
Third side=32−18
Third side=14
Therefore, the length of the other side is 14 cm.