Answer:
38.485(correct to 5 significant figure)/ 12.25π
Step-by-step explanation:
[tex]\pi(7 {}^{2} )( \frac{90degree}{360deree} )[/tex]
[tex] = \pi(49)( \frac{1}{4} )[/tex]
=38.485(cor. to 5 sig.fig.)/ 12.25π
to find arc length of sector,we need to π(radius²)(sector's degree divided by 360 degree)
