Here's a step-by-step solution for Question 3 and Question 4.
Question 3
Given: O is the centre of the circle. PWSR is a cyclic quadrilateral. PW || OS. P^1=36∘.
3.1 Calculate SOW^
- Step 1: Identify parallel lines and transversal.
Given PW || OS. Consider WO as a transversal.
- Step 2: Apply alternate interior angles theorem.
∠PWO=∠WOS (Alternate interior angles, PW || OS).
So, W^1=SOW^.
- **Step 3: Analyze $\triangle OWS