Answer:
12 in
Step-by-step explanation:
the arc length formula is s = rФ, where Ф is the central angle in radians.
Here, the arc length is s = (4 in)(3 radians) = 12 in
178 is your answer I'm pretty sure
z=110
a=69
b=47
c=116
d=93
e=86
because they are both in the circle
hard
I don't know because I have never learnt these things