Question

Q5. The square of 2.1 is a) 44.1 b) 4.41 c) 0.441 d) 441

Answer 1

Answer:

4.41

Step-by-step explanation:

2.1/10×2.1/10=21/10×21/10

Now, 2.1×2.1=4.41

Answer 2

Answer:

Method1:

2.1×2.1=4.41

METHOD 2

2.1×2.1

21/10×21/10=21×21/10×10

=441/100=4.41

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