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The diagram below represents a running track. The track has two parallel sides, each of
length 105m, and two semi-circular arcs, each of diameter
60.5m.
60.5
Calculate
(a) the length of one semi-circular arc,
105
NOT TO SCALE
Answer (a)
m [2]
laps of the track.
4
(b) the distance an athlete runs when she competes 7
Answer (b).
m [3]



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