Arc Length Formula :
[tex] \boxed{\bold{Arc length = \frac{θ}{360^o} \: 2 \pi r}} [/tex]
Arc length = [tex] \frac{\cancel{45^o}}{\cancel{360^o}} \times 2 \times 3.14 \times 13 [/tex]
Arc length = [tex] \frac{1}{8} \times 81.64 [/tex]
Arc length = [tex] \frac{81.64}{8} [/tex]
Arc length = 10.205 cm
#CMIIW