really6863 really6863
  • 14-11-2019
  • Mathematics
contestada

1. radius = 7 ft, central angle = 18°
Find arc length.

Respuesta :

jimrgrant1 jimrgrant1
  • 14-11-2019

Answer:

2.2 ft ( to 1 dec. place )

Step-by-step explanation:

The arc length is calculated as

arc = circumference × fraction of circle

     = 2πr × [tex]\frac{18}{360}[/tex]

     = 2π × 7 × [tex]\frac{1}{20}[/tex]

     = 14π × [tex]\frac{1}{20}[/tex]

     = [tex]\frac{14\pi }{20}[/tex] ≈ 2.2 ft

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