If two sides of a triangle have lengths of 5cm and 12cm, then the third side can have any length that's more than 7cm and less than 17cm. If the third side is 13cm, then the triangle is a right triangle.
5cm*5cm*5cm = 125 cubic cm.
The volume of a cube of 5cm is: 125 cm3
9cm + 5cm + 9cm + 5cm = 28cm
5cm, 5cm, and 5cm could represent the lengths of the sides of an equilateral triangle, or might indicate the length, width, and height of a cube.
Volume = 5cm*5cm*5cm = 125 cm3
5cm * 5cm * 10cm = 250 cm3
There are: 50mm = 5cm