As shown in the above diagram, a person starts from the centre O of a circular path AB, walks along the line indicated by arrows and returns to the same point. If the radius OA = OB = 100 metres, what is the total distance walked to the nearest metres?

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Q: 10 (CAPF/2013)
As shown in the above diagram, a person starts from the centre O of a circular path AB, walks along the line indicated by arrows and returns to the same point. If the radius OA = OB = 100 metres, what is the total distance walked to the nearest metres?
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question_subject: 

Maths

question_exam: 

CAPF

stats: 

0,10,13,3,10,7,3

keywords: 

{'circular path ab': [0, 0, 0, 1], 'total distance': [0, 0, 1, 0], 'radius oa': [0, 0, 0, 1], 'nearest metres': [0, 0, 0, 1], 'above diagram': [0, 0, 1, 0], 'metres': [0, 1, 1, 0], 'arrows': [0, 1, 0, 1], 'line': [4, 1, 3, 4], 'ob': [0, 0, 0, 1], 'returns': [0, 0, 0, 2]}