Answer:
Arc length is equal to
where
is the angle in radians and
is the radius.
Question 1:

So the angle is CFD.
Question 2:

So the angle is AFE.
Question 3:

So the angle is AFB.
Question 4:

So the angle is BFC.
Answer:
2.75 yards
Step-by-step explanation:
If it took both (meaning 2) dresses a certain amount, half of that amount is one dress. So, we need to divide 5 1/2 by 2
*1/2 of 1 = 0.5
0.5 + 5 = 5.5
5.5 / 2 = 2.75
(2.75 also equals 2 3/4)