![At a point A, 20 m above the level of water in a lake, the angle of elevation of a cloud is 30∘. The angle of elevation of the reflection of the At a point A, 20 m above the level of water in a lake, the angle of elevation of a cloud is 30∘. The angle of elevation of the reflection of the](https://search-static.byjusweb.com/question-images/byjus/infinitestudent-images/ckeditor_assets/pictures/6383/content_27.png)
At a point A, 20 m above the level of water in a lake, the angle of elevation of a cloud is 30∘. The angle of elevation of the reflection of the
![Arrêt pour les autobus scolaires | Le Guide officiel des camions publié par le ministère des Transports (MTO) | ontario.ca Arrêt pour les autobus scolaires | Le Guide officiel des camions publié par le ministère des Transports (MTO) | ontario.ca](http://files.ontario.ca/mto-truck-handbook-fr-300-2021-03-26-2-4.jpg)
Arrêt pour les autobus scolaires | Le Guide officiel des camions publié par le ministère des Transports (MTO) | ontario.ca
![DVLA on Twitter: "Do you know how far 20 metres is? It's the width of 8 parking bays. You must be able to read a number plate from this distance to meet DVLA on Twitter: "Do you know how far 20 metres is? It's the width of 8 parking bays. You must be able to read a number plate from this distance to meet](https://pbs.twimg.com/media/DmqS9BcW0AA5hZP.jpg)