# Find the squares

(i) 85

Since 85 terminates with 5.

8 × (8 + 1)

8 × 9 = 72

So, 852 = 7225

(ii) 115

Since 115 terminates with 5.

11 × (11 + 1)

11 × 12 = 132

So, 1152 = 13225

(iii) 165

Since 165 terminates with 5.

16 × (16 + 1)

16 × 17 = 272

So, 1652 = 27225

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