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  • 5 years ago

I update my question because I missing the detail. I include the lession example, for the small angle I can do no problem , but for big number I can solve In circle C, point T is randomly selected so that it does not coincide with point P, segment SQ is a diameter of circle C. 1)Find the probability that m <STQ = 90 2)Find the probability that m <PTQ = 180 the key for number 1 is : 1 The example lession is: Point A and B are on cicrle so that art mAB=60 degree ,D is random located on the same circle that is not coincide with A or B. What is the probability of m<ADB=30degree? arcmBDA=360- arcm

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spraguer (Moderator)
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