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6. Squares and Square Roots
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Q21 of 50 Page 6

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

The square root of 11 is:


Hence,


= 3.31662

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19

In a right triangle ABC, ∠B = 90°

(a) If AB = 6 cm, BC = 8 cm, find AC

(b) If AC = 13 cm, BC = 5 cm, find AB

20

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

22

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

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.

Questions · 50
6. Squares and Square Roots
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