Find the square root of 9216.1. 382. 963. 344. 865. None of these.

1.	Find the square root of 9216.1. 382. 963. 344. 865. None of these.
Answer» Correct Answer - Option 2 : 96 Concept used:- Trick to find the square root of a number. Method and Calculation:- • Find the unit digit of the square root by looking at the unit digit of the given number. For ✓9216, unit digit must be 4 or 6 • Find tens digit by looking at number formed by the first 2 digits. 81 < 92 < 100 (81 and 100 are squares of 9 and 10, so tens digit of square root will be 9. • Find the square root from the narrowed down options. ✓9216 = 94 or 96. To find this, we can find the square of the number between these numbers ending in 5 i.e 95. 95² = 9025 (for left part multiply tens digit with one more than tens digit, the right part is 25) Clearly, ✓9216 = 96 (9216 is more than 9025)

Answer» Correct Answer - Option 2 : 96

Concept used:-

Trick to find the square root of a number.

Method and Calculation:-

• Find the unit digit of the square root by looking at the unit digit of the given number.

For ✓9216, unit digit must be 4 or 6

• Find tens digit by looking at number formed by the first 2 digits.

81 < 92 < 100 (81 and 100 are squares of 9 and 10, so tens digit of square root will be 9.

• Find the square root from the narrowed down options.

✓9216 = 94 or 96. To find this, we can find the square of the number between these numbers ending in 5 i.e 95.

95² = 9025 (for left part multiply tens digit with one more than tens digit, the right part is 25)

Clearly, ✓9216 = 96 (9216 is more than 9025)

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