Answer: (14.5cm, 15.4cm)
Step-by-step explanation:
We have a measure of 15cm.
This may be a rounded up or rounded down number.
Now, when we want to round at a given digit, we need to see to the previous digit.
If the previous digit is larger than 5, then we round up.
If the previous digit is 5 or smaller, then we round down.
Then, the largest number such that we rounded down to 15cm, is:
15.4cm
The smallest number such that we rounded up to 15cm is:
14.5cm
Then the range of possible values is:
