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Two arcs of the same lengths subtend
angles of 60° and 75º at the centres of
two circles. What is the ratio of radii of
two circles ?
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Answer:
Step-by-step explanation:theta=arc/radius
IN case of first circle,it is
60=x/r1 ,........................(1)
on assuming the arc length to be x and radius to be r1
In case of second circle,
75=x/r2......................(2)
assuming the radius to be r2
(1)÷(2)=60/75=r2/r1
on simplifying,we get r1:r2=5:4
hope this helps..........;p
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