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If the arcs of square length in two circles subtend angles of 60° and 75° at their centres, the ratio of their radii is
5Q:
If the arcs of square length in two circles subtend angles of 60° and 75° at their centres, the ratio of their radii is
- 13 : 4false
- 24 : 5false
- 35 : 4true
- 43 : 5false
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