Question

Each of the following is obviously not a perfect cube. Just by looking at the number give reason why it is not a perfect cube? (i) 72900 (ii)800000 (iii) 3430 ​

Answer 1

Answer:

☞729 is the cube of 9. But 72900 has just 2 zeroes. Therefore it is not a cube

☞8000 is the cube of 20 but it has 5 zeroes so it is not a cube

☞343 is 7³. but it has 1 extra 0. Hence, it is not a perfect cube.

Step-by-step explanation:

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Answer 2

Answer:

Refer to the above attachment hope it helps