Answer: Because a cube is composed of square sides, the edges of each square will be the same length. Therefore if the perimeter of the base is 20 cm, one side would be 5 cm. 4 sides on a square, therefore 20cm/4 = 5 cm. The formula to find the volume of a cube is length x width x height. Like I stated previously, every edge on a cube has the same length. Because of this the length of the cube is equal to the width of the cube and the width of the cube is equal to the height of the cube.
Therefore volume of the cube would equal 5cm x 5cm x 5cm, which equals 125 cm.
Therefore the volume of a cube that has a perimeter of 20cm for the square base is 125cm cubed.
Answer: #1 make sure you have all the tools necessary for the job you are doing(So you are not having to look for any one tool.) #2 make sure a fire extinguisher is nearby. #3make absolutely sure you have notified family,friends,or neighbors that you are going to be working on your car(of course this only applies if you are going to have the car jacked up with you underneath it.) #4Wear gloves to avoid cutting yourself as I am sure you are going to do. #5Wear safety glasses(I think that one is just a given) #6Do not attemt to work on your car if you are not sure as to what you are doing.