White blood cells, I Helper cells and antibodies are all a part
of which body system
a) excretory
c) endocrine
b) digestive
d) immune

Help a boi out

step-by-step explanation:

hunhgunyt7 in u uuuhiuteu

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm