omojay1257
22.10.2019 •
Mathematics
Acircle has an arc of length 24π that is intercepted by a central angle of 80°. what is the radius of the circle?
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Ответ:
arc/2pi r = degrees/360
then fill in what you know: 24pi/2pi r = 80/360
Now cross multiply and you get: 8640pi = 160pi r
Now divide both sides by 160pi and you get: 54= r
Ответ: