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Squares and Square Roots - NCERT

The numbers 1, 4, 9, 16 ... are square numbers. These numbers are also called perfect squares. 1. Find the perfect square numbers between (i) 30 and 40 (ii) 50 and 60 6.2 Properties of Square Numbers Following table shows the squares of numbers from 1 to 20. Number Square Number Square 1 1 11 121 2 4 12 144 3 9 13 169 4 16 14 196 5 25 15 225

  Form, Square, Root, 1 form, Squares and square roots, Square 1 1