 Hi and welcome to the session. I am Neha and today I am going to help you with the following question. The question says find the site of a cube whose surface area is 600 cm2. Now before proceeding for the solution let's recall the formula of surface area of a cube that is equal to 6 into L square where L is the length of the site of cube. This is the key idea for this question. Now let's see its solution. Now we know that surface area of a cube is equal to 6 into L square and in question we are given that the surface area of the cube is 600 cm2 so we will replace surface area of a cube by 600 and this will be equal to 6 into L square dividing both sides by 6 we will get 600 upon 6 equal to 6 into L square upon 6. So here 6 and 600 will get cancelled by the common factor 6 and on right hand side 6 and 6 will get cancelled. So this gives us 100 equal to L square. Now taking square root on both the sides we get square root of 100 equal to square root of L square so this gives 10 equal to L. Therefore length on site of the cube is equal to 10 cm so 10 cm is the required answer for this question. With this we finished this session hope you must have enjoyed it. Goodbye and take care.