A circular coaster has a radius of 4.28 cm, correct to 2 decimal places.
Work out the lower bound for the circumference of the coaster.
Give your answer to 2 decimal places.
Work out the upper bound for the area of the coaster.
Give your answer to 3 significant figures.
Practise OCR GCSE Maths Bounds with exam-style questions for Foundation and Higher tier. 52 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.