Answer:
The length of arc is 7.85cm
Step-by-step explanation:
You can find the length of arc by using the formula :
[tex] \frac{θ}{360} \times 2 \times π \times {r}[/tex]
θ = 90°
r = 5cm
Arc = (90/360)×2×π×5
= (1/4)×2×π×5
= (1/4)×10×π
= (5/2)π
= 7.85 cm (3s.f)
