Higher November 2021 Paper 2 Q16
16 Here is a cube with edge length \(x\) cm
One diagonal is shown.
(a) Circle the length, in centimetres, of the diagonal. [1 mark]
- \(\sqrt{3}\,x\)
- \(\sqrt[3]{3x^2}\)
- \(\sqrt{x^3}\)
- \(\sqrt[3]{3}\,x\)
(b) The total length, in centimetres, of the edges of the cube is a multiple of 18
Circle the correct statement. [1 mark]
- \(x\) is a whole number
- \(x\) is not a whole number
- \(x\) might be a whole number
| Answer | Mark | Comments |
|---|---|---|
| \(\sqrt{3}\,x\) | B1 |
| Answer | Mark | Comments |
|---|---|---|
| \(x\) might be a whole number | B1 |