A rectangle has a length of 21 cm, to the nearest cm, and a width of 5.3 cm, to the nearest mm.
Show that the upper bound for the perimeter of the rectangle is 53.7 cm.
Work out the lower bound for the area of the rectangle.
193 exam-style questions on Eduqas GCSE Maths Bounds. Each one has a worked solution and a mark scheme showing where the marks go.