This is the only question I need help with that I am completely stuck on. I can never find the right number for the length of each circular arc.

I got (c) which is 22.15

I think (a) could be 3 but I could be wrong.

(a) a = 60 C = 48 cm

Arc Length = 48 * (60 / 360) = 48 * (1/6) = 8 cm

(b) a = 74 r = 2 ft

Arc Length = 2 pi * 2 * (74 / 360) ≈ 2.58 ft

(c) Your answer is correct !!

(d) a = 150 r = 3m

Arc Length = 2pi * 3 * (150 / 360) ≈ 7.85 m