courtneyaugusto
courtneyaugusto
31-07-2016
Mathematics
contestada
Find the length of the arc.
Respuesta :
olemakpadu
olemakpadu
31-07-2016
Radius of the arc, r = 7 ft, Angle the arc subtends = 210°
Length of arc = (θ/360°)*2πr
Length of arc = (210°
/360°)*2π*7
= (7/12)*2π*7 = 49π/12
Length of arc = 49
π/12
≈ 49*3.14159 / 12 ≈ 12.828
Length of arc
≈ 12.828 feet
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