Respuesta :

Circumference: C=10
Length of the arc: L=9/2
Central angle of the arc: A=?

Rule of three:
Angle    Length
360°  →   10
  x     →    9/2

x=(360°*9/2)/10
x=(180°*9)/10
x=18°*9
x=162°

Answer: 162°
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