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A-Level MathematicsYear 2021Q5

Turn over 11  Question 5 continued ___________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (Total for Question 5 is 7 marks) 12   6. A O r 2r 2r θ r B C D E F Figure 1 The shape OABCDEFO shown in Figure 1 is a design for a logo. In the design • OAB is a sector of a circle centre O and radius r • sector OFE is congruent to sector OAB • ODC is a sector of a circle centre O and radius 2r • AOF is a straight line Given that the size of angle COD is θ radians, (a) write down, in terms of θ, the size of angle AOB (1) (b) Show that the area of the logo is 1 2 r2 (3θ + π) (2) (c) Find the perimeter of the logo, giving your answer in simplest form in terms of r, θ and π. (2) _ _ _ _ _ _ _ _ _ _ ___________________________________________

Paper Source:9MA0_02_que_20211014.pdf

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Exam Specification Info

This question is part of the UK A-Level Mathematics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.

Syllabus levelAdvanced Level (A-Level)

SubjectMathematics

Official MarksVariable (2–6 marks)