Answer:
38.485(correct to 5 significant figure)/ 12.25π
Step-by-step explanation:


=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)
Answer:
cosA = 
Step-by-step explanation:
cosA =
=
= 
:(
the answer is 10!!!!!!
good luck
Answer:
ok but this shii is fire ash