Let's approach these questions systematically.
### 6. Which of the following means square metres?
To determine which notation represents "square metres," we recall that this term refers to the measurement of area. Square metres are denoted by squaring the unit of length (metres).
Let's break down each option:
a. [tex]\( m^2 \)[/tex]:
- This notation represents "metres squared," which is the correct representation for square metres.
b. [tex]\( m^s \)[/tex]:
- This notation is not standard for any measurement and does not signify square metres.
c. [tex]\( cm^2 \)[/tex]:
- This notation denotes "square centimetres," which is an area measurement in a smaller unit, not square metres.
d. [tex]\( m / m \)[/tex]:
- This notation simplifies to a dimensionless quantity (essentially "1"), and it does not represent any physical measurement of area.
The correct answer is:
- a. [tex]\( m^2 \)[/tex]
### Which of the following language applies to measurements?
We need to identify which term or language is suitable for use in measurement contexts. Let’s analyze each option:
a. Near:
- This term is relative and subjective. It is more qualitative and does not give a precise measurement.
b. Heavier:
- This term is comparative and suggests a difference in weight, but it’s not a specific measurement term.
c. Warmer:
- Similar to "heavier," this term compares temperatures but doesn’t specify a measurement unit.
d. Empty:
- In the context of measurements, "Empty" refers to the absence of content or volume. It is a term that can be used in measurement contexts, such as indicating a container is empty.
The correct answer is:
- d. Empty.
### Final Selections:
- Which of the following means square metres? a. [tex]\( m^2 \)[/tex]
- Which of the following language applies to measurements? d. Empty.
