Question 4 - A-Level Maths

Exam Board	CAIE
Module	P1 (Pure Mathematics 1)
Year	2017
Session	June
Topic	Radians, Arc Length and Sector Area

Express the perimeter of the shaded region in terms of \(r\) and \(\theta\).
In the case where \(r = 5\) and \(\theta = \frac { 1 } { 6 } \pi\), find the area of the shaded region.