Intermediate June 2017 Unit 1 Q15
15. In the following formulae, each measurement of length is represented by a letter.
Consider the dimensions implied by the formulae.
Write down, for each case, 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 |
| \(d^3 - 3{\cdot}14r^2h\) | volume |
| \(d^2 + hw\) | …………………… |
| \(d + w + h\) | …………………… |
| \(2\pi r - \pi r^2\) | …………………… |
| \((d + h)w\) | …………………… |
| \(d^3 + dwh\) | …………………… |
| Scheme | Marks | Comments |
|---|---|---|
| (volume) Area Length None Area Volume | 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. |