Question

33. A cube of side 5 cm is cut into as many 1cm cubes as possible. What is the ratio of

the surface area of the original cube to that of the sum of the surface areas of the

smaller cubes?

Answer 1

Answer:

Step-by-step explanation:

Surface area of original cube

6a square

6 x 5x5

30x5

150 CM square

Total number of small cubes

Volume of original cube decided by volume of one small cube

125/1

125 small cubes

Surface area of small cube

6x1x1

6cm square

Total surface area of all cubes

6x125

750 cm square

So the ratio is

Original cube/total area of all small cubes

150/750

15/75

3/15

1/5

So the ratio is 1: 5

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