A circle has a radius of 5 cm, to the nearest cm.
Work out the lower bound for the circumference of the circle.
Give your answer in terms of π\piπ.
Work out the upper bound for the area of the circle.
Give your answer in terms of π\piπ.
Practise Oxford AQA IGCSE Maths Bounds with exam-style questions for Core and Extended tier. 11 questions, matched to the Oxford AQA IGCSE Maths (9260) specification and written in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.