A traffic light is 2.4 m tall. Its shadow from a nearby floodlight is 3 m long.
What is the height of the floodlight? (3 marks)
Show Worked Solution
`text{Triangles share common angle and both have right angles}`
`=>\ text{Triangles are similar (equiangular)}`
`text{Since corresponding sides are in similar ratios:}`
| `h/5` | `= 2.4/3` |
| `:. h` | `= (5 xx 2.4)/3` |
| `= 4\ text(metres)` |