contestada

1. (G. 12B) The radius of a circle is 5
inches. What is the length of a 70° arc?
(use 3.14 for 1)

Respuesta :

Answer:

1.94 in

Step-by-step explanation:

The arc length formula is s = rФ.  Here, r = 5 in and Ф = 70°  But in this formula the central angle, Ф, must be in radians:

70°(1 rad)

-------------- = 0.389 rad

 180°

Thus, the arc length here is s = (5 in)(0.889 rad) = 1.94 in

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