Q2 of 67 Page 82

Identify the perfect squares among the following numbers:

1, 2, 3, 8, 36, 49, 65, 67, 71, 81, 169, 625, 125, 900, 100, 1000, 100000.

Since,


62 = 36


72 = 49


92 = 81


132 = 169


252 = 625


302 = 900


102 = 100


152 = 225


Hence, 36, 49, 81, 169, 625, 900 and 100 are perfect squares.


More from this chapter

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1

Express the following statements mathematically:

(i) square of 4 is 16; (ii) square of 8 is 64; (iii) square of 15 is 225.

 3

Make a list of all perfect squares from 1 to 500.

 4

Write 3-digit numbers ending with 0, 1, 4, 5, 6, 9, one for each

digit, but none of them is a perfect square.

 5

Find numbers from 100 to 400 that end with 0, 1, 4, 5, 6 or 9, which are perfect squares.