Respuesta :

arodri04

Answer:

s =5*π/2 km

Step-by-step explanation:

arc length s =  rθ

where θ =central angle in radians

r = 5km

θ = 90 degrees = 90 degrees/360degrees * 2π = [tex]\frac{1}{4}[/tex](2π) = π/2

s =5*π/2 km

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