justniya24
justniya24 justniya24
  • 13-07-2020
  • Mathematics
contestada

Find the length of an arc of an 8" radius circle if the arc measures 45°
271 in.
871 in.
1671 in.

Respuesta :

altavistard
altavistard altavistard
  • 17-07-2020

Answer:

Step-by-step explanation:

The appropriate formula here is s = rФ, where Ф is the central angle in radians.  We are given r = 8" and Ф = π/4 radians.  Then the desired arc length is

s = (8")(π/4), or   s = 2π or approximately 6.28".  The three given possible answers are 'way off.

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