Pls answer this question
Pls

Answer:
1. 1.73
2. 52.5
3. 15.59 ( I don't think if that's 6.0 or 5.0) ( if that's 6.0 the answer is 15.59 and if that's 5.0 the answer is 10.83)
4. ( I'm sorry i don't know the answer of this)
5. 3
Explanation:
I don't think so if that's the correct answer☺️
[ CORRECT ME IF IM WRONG ☺️ ]