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courtneyaugusto
courtneyaugusto courtneyaugusto
  • 30-07-2016
  • Mathematics
Answered

Find the length of the arc.

Find the length of the arc. class=

Verified Answer :

olemakpadu
olemakpadu olemakpadu
  • 30-07-2016

Radius of the arc, r = 7 ft,   Angle the arc subtends = 210°

Length of arc = (θ/360°)2πr

Length of arc = (210°/360°)2π7
 
                      = (7/12)2π7 = 49π/12

Length of arc = 49π/12 ≈ 493.14159 / 12 ≈ 12.828

Length of arc ≈ 12.828 feet

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