Breabel
Breabel Breabel
  • 11-04-2017
  • Mathematics
contestada

Find the length of an arc on a circle of radius 44 corresponding to an angle of 90∘

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dean10 dean10
  • 11-04-2017
s = arc length; r = radius of the circle; (θ) = measure of the center angle in radians
s = (central angle/360) *2 (pi) * r = (45/(pi)/360) * 2(pi)r = 1/4r = 1/4(7) = 7/4 = 1.75 <=ANSA)

arc = 10.05 - 10 = 0.05 = 5 min
5 = (theta)/180) * (pi)r = theta or
theta = 5/r =5/7 = 0.71 rad <= ANS B)
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