Between 13 and 14 (C)
Explanation:
11² = 11 × 11 = 121
12² = 12 × 12 = 144
13² = 13 × 13 = 169
14² = 14 × 14 = 196
15² = 15 × 15 = 225
180 is between 169 & 196
= √180 is between √169 & √196
= √180 is betwwen 13 & 14
So, √180 falls between numbers 13 and 14 (C)
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