Higher November 2023 Unit 2 Q14
14. A solid has a height of 225 cm.
A larger, mathematically similar solid has a height of 855 cm.
The surface area of the smaller solid is 5300 cm2.
Calculate the surface area of the larger solid. [3]
| Scheme | Marks | Comments |
|---|---|---|
| (Area scale factor =) (855/225)2 OR (225/855)2 | B1 | 3·82 =14·44 OR (19/5)2 OR 361/25 OR (5/19)2 OR 25/361 or equivalent. |
| 5300 × (855/225)2 OR 5300 ÷ (225/855)2 | M1 | |
| = 76532(cm2) | A1 | CAO |