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6. Squares and Square Roots
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Q22 of 50 Page 6

The area of a square field is . Calculate the length of the side of the square.

Given, area = 30 × m2

= m2


If L is length of each side then,


L2 =


L = =


= (Therefore, )


Therefore, length is

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20

Find the smallest square number that is divisible by each of the numbers 8, 15 and 20

21

Find the square root of 11 correct to five decimal places.

23

A PT teacher wants to arrange maximum possible number of 6000 students in a field such that the number of rows is equal to the number of columns. Find the number of rows if 71 were left out after arrangement.

24

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Questions · 50
6. Squares and Square Roots
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