Complete the table for question 8.(a)(ii), calculating sin I and sin r for the given angles.

• For $I = 30^\circ$: $\sin(30^\circ) = 0.500$
• For $I = 40^\circ$: $\sin(40^\circ) \approx 0.643$
• For $I = 60^\circ$: $\sin(60^\circ) \approx 0.866$
• For $I = 80^\circ$: $\sin(80^\circ) \approx 0.985$

• For $R = 19^\circ$: $\sin(19^\circ) \approx 0.326$
• For $R = 30^\circ$: $\sin(30^\circ) = 0.500$
• For $R = 35^\circ$: $\sin(35^\circ) \approx 0.574$
• For $R = 41^\circ$: $\sin(41^\circ) \approx 0.656$

The completed table is shown below: