Answer :
Answer: 101 centimetres²
Step-by-step explanation:
Assuming that the units of the given 100.5 value are square centimetres, we can round to the nearest whole number. To do this, we look at the tenths place. Since 5 is five or greater, we round the ones place up from 0 to 1. This gives us our answer of 101.
100.5 ≈ 101