A triangle has a perimeter of 9 cm. How many combinations of its sides exist if their lengths in cm are integers?
The sides of a triangle are in the ratio 3:2:4. If the perimeter of the triangle is 36 cm, then the length of its longest side is ___ cm.
The sides of a right angled triangle are 2a cm, (2a+2) cm and (4a -2) cm. What is the length of the shortest side of the triangle if its perimeter is 24 cm?