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The square of 53 is:
1. 2,809
2. None of the above
3. 2,800
4. 2,806

1 Answer

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Best answer
Correct Answer - Option 1 : 2,809

Concept used:
(a + b)2 = a2 + 2ab + b2

Calculation:
Number = (53)2
⇒ (50 + 3)2
⇒ (50)2 + 2 × 50 × 3 + (3)2 
⇒ 2500 + 300 + 9
⇒ 2809
∴ The square of 53 is 2809.

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