233k views
4 votes
A length is measured as 21 cm correct to 2 significant figures. a) What is the lower bound for the length? b) What is the upper bound for the length?

User Chris Buck
by
3.5k points

1 Answer

2 votes
lets say 20.4 it would round down to 20 not 21.

The lower bound length is 20.5
The upper bound length is 21.5
[20.5,21.5)
User Roberto Polli
by
2.9k points