2 is.
0
165 rounded to the nearest tens place is 170
165 is an integer and so is already rounded to a much greater extent.
200
165 is a whole number. whole-number Noun: A number without fractions; an integer. Synonyms: integer
0
165
165 rounded to the nearest tens place is 170
Rounding is making an approximation of a number so it is easier to work with. eg 1 9 ≈ 10 (≈ means approximately equal to) 53 ≈ 50 These two examples were rounded to the nearest whole number of 10. eg 2 165 ≈ 200 545 ≈ 500 989 ≈ 1000 1378 ≈ 1400 These four examples where rounded to the nearest whole number of 100.
165 is an integer and so is already rounded to a much greater extent.
200
165 is a whole number. whole-number Noun: A number without fractions; an integer. Synonyms: integer
200
180
6/165 is a rational fraction and there is no sensible way to express it as a whole number.
Any whole number with 1, 3, 5, 7, or 9 on the end is an odd number.165 fits that description.
165 centimeters = 64.961 inches (rounded)