Question
Two circles of radii 4 cms and 1 cm touch each other externally and θ is the angle contained by their direct common tangents. Then sin θ is =
Answer: Option A
:
A
sinθ2=r1−r2r1+r2=35,cosθ2=45sinθ=2425
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:
A
sinθ2=r1−r2r1+r2=35,cosθ2=45sinθ=2425
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