A rectangular field has a length of 45 metres, to the nearest 5 metres, and a width of 23 metres, to the nearest metre.
Write down the lower bounds for the length and width of the field.
Work out the lower bound for the perimeter of the field.
Work out the upper bound for the area of the field.
193 exam-style questions on Eduqas GCSE Maths Bounds. Each one has a worked solution and a mark scheme showing where the marks go.