IGCSE数学样题May-June 2010_2(11)

IGCSE数学样题May-June 2010_2

20 A running track has a boundary that is always 40 metres from a straight line, AB. AB = 70 m. The scale drawing below shows the line AB. 1 centimetre represents 10 metres.

For Examiner's Use

(b) Calculate, in metres, the total length of the actual boundary. Answer(b)

(a) Complete the scale drawing accurately to show the boundary of the running track.

[2]

m [3]

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0580/12/M/J/10