Question

Round off 17.2 to one significant figure

Answer 1

when rounding off the rule is you round off to the nearest 5.
17.2 would then be rounded of to 17. should it have been 17.5 you would then round up to the next 5 which would be 18

Answer 2

round off 17.2 to one significant figure is 17.

Explanation:

Given : 17.2 number

To find : round off 17.2 to one significant figure.

Solution : We have given

Number 17.2

We can see from the given number , after decimal number is less than 5 so, we will not consider it.

If the number after decimal is greater than 5 then it increase the previous number by 1

Example: 17.5 it becomes 18.

Therefore, round off 17.2 to one significant figure is 17.