N(p)=4 means that there a four elements in a set P. Given: n(X u Y)=50
n(X)=20
and n(Y)=40.
Determine n(X n Y)

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

step-by-step explanation:

the answer is in the picture

i'm guessing it might be 40.