please find the question in the attachment
its question no.4
Hello kandyflossHave a look at the diagram I've attached. I've shown all the distances you need. You need to:
- Calculate BAC, using the Cosine Rule on ABC.
.- Calculate BAR using the fact that BAR is right-angled at R.
.- Calculate CAS in a similar way
.- Hence calculate PAT and finally the arc length PT
Can you complete it now?
Grandad