If the arcs of square length in two circles subtend angles of 60 degre – McqOptions

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1.	If the arcs of square length in two circles subtend angles of 60 degree and 75 degree at their centres, the ratio of their radii is :
A.	3 : 4
B.	4 : 5
C.	5 : 4
D.	3
Answer» D. 3

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