Intermediate June 2023 Unit 1 Q18
18. In the following formulae, each measurement of length is represented by a letter.
Consider the dimensions implied by each formula.
For each case, write down whether the formula could be for a length, an area, a volume or none of these.
The first one has been done for you. [3]
| Formula | Formula could be for |
|---|---|
| \(4d + r - 2w\) | length |
| \(w(l + b + h)\) | ………………… |
| \(d^3 + 3{\cdot}14r\) | ………………… |
| \(\dfrac{w^3}{d^2}\) | ………………… |
| \(3{\cdot}14r^3 - lbh\) | ………………… |
| \(\dfrac{4w^2}{d}\) | ………………… |
| Scheme | Marks | Comments |
|---|---|---|
| (Length) Area None Length Volume Length | B3 | Must use the terminology given in the question. B3 for all 5 correct. B2 for 3 or 4 correct. B1 for 2 correct. B0 otherwise. |