Sector ABC is a sector of a circle, centre A and and radius 7 cm. The length of the arc BC is 4.2 cm

Find the size of angle BAC, in radians
Calculate the area of the sector ABC
Find the size of angle CAD, in radians
Find the total area of the shape ABCD
278 exam-style questions on Edexcel A Level Maths Radians, covering 5.1 Radian Measure, 5.2 Arc Length, 5.3 Areas of Sectors and Segments, 5.4 Solving Trigonometric Equations, and 5.5 Small Angle Approximations. Each one has a worked solution and a mark scheme showing where the marks go.