Question

167. The square root of a perfect square of 17 digits will
have
(1) 8 digits
(2) 17 digits
(3) 9 digits
(4) 7 digits​

Answer 1

Answer:

c

Step-by-step explanation:

9 digits............................

Answer 2

The square root of a perfect square of 17 digits will have 9 digits.

Step-by-step explanation:

The square root of perfect square number  of 1 digit and 2 digit is 1

• 1 digit or 2 digits = 1 digit
• 3 digits or 4 digits = 2 digits
• 5 digits or 6 digits = 3 digits
• 7 digits or 8 digits = 4 digits
• .........
• 17 digits or 18 digits = 9 digits

The square root of any number is equal to half of the number of digits.

$\sqrt{9}=3,\sqrt{81}=9$

Hence, the square root of perfect square of 17 digits will have 9 digits.

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