(a)[3]
For the circle with centre $O$, the minor arc $PQ$ has length $\frac{3}{7}$ of the major arc $PQ$. Show that $x = 108$.
(b(i))[2]
Show that $\pi y = 360\sin y$.
(b(ii))[3]
Fill in the table, with answers correct to two decimal places.
(b(iii))[1]
Complete the statement. The value of $y$, correct to one decimal place, which satisfies $360 \sin y = \pi y$ is ................................