SOLUTION: Find the number of radians in the central angle that subtends an arc of 6cm on a circle of diameter 5m. Please help me.

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Question 1105943: Find the number of radians in the central angle that subtends an arc of 6cm on a circle of diameter 5m. Please help me.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
Answer by ikleyn(52803) About Me  (Show Source):
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Find the number of radians in the central angle that subtends an arc of 6cm on a circle of diameter 5m. Please help me.
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r%2Aalpha = S,


where r is the circle's radius, alpha is the central angle in radians, and S is the arc's length.


Which gives you  alpha = S%2Fr = 6%2F250 radians.


Here 6 = 6 cm is the given length of the arc, and 250 = 250 cm = 2.5 m is the circle's radius.


        Be aware:   the solution by @josgarithmetic was   W R O N G.