Question
A rectangle has length L = 12.4 cm and width W = 8.6 cm, both correct to 1 decimal place.
(a) Write down the error interval for L. (1 mark)
(b) Calculate the upper bound for the area of the rectangle. (2 marks)
(c) By calculating both bounds, write the area to a suitable degree of accuracy. Justify your choice. (2 marks)
5 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.