Reflected over the x-axis:

<span>. Hence, the original triangle is described by A'B'C'.</span>
The estimated answer is 11. First you round 16.8 to 17 because the decimal is above 5. Then you round 5.94 to 6 because the first decimal place is greater than 5. Lastly you subtract 17 minus 5 to get 11.
It would like this for solving n