Question

without calculating the square root find the number of digit in the square root of the following numbers to 28900​

Answer 1

Answer:

You add the no. to itself then same no. of times as it values

Step-by-step explanation:

28900 = 20000+8900

(20000+8900)square

Use algebraic identity

(a+b)square = a2 + b2 +2ab

May it helps u

Answer 2

Answer:

the square root of 28900 is 170.

l had found this in following way

first split the number 28900 into two 289/00 like this way so last digit end with 0 therefore the last digit is 0 next first two digit 289 in 289 last digit is 9 so the second last number end with 3 or 7 so we know that 13 square end with 169 and 17 square end with 289 therefore l concluded that 170 is the answer

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