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  • 5 years ago

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 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- arcmAB = 360-60=300 Sin <ABD must intercept arc AB the probability that m<ADB =30 is

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  1. anonymous
    • 5 years ago
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    look like limiting word,I update more detail . Sin <ABD must intercept arc AB the probability that m<ADB =30 is the same as the probability of D is located on arc ADB is 300/360 or 5/6 . So the probability that m<ADB =30 is also 5/6 I do 360-90=270 270/360=3/4 I don't know how get answer is:1

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