Hollow Cylinder Formula

Equation for calculate hollow cylinder is,

Circumference (C):
C1 = 2 π r1
C2 = 2 π r2
Lateral Surface Area (L):
L1 = 2 π r1 h
L2 = 2 π r2 h
Area (A):
A1 = π r1²
A2 = π r2²
A = A1 - A2
Volume (V):
V1 = π r1² h
V2 = π r2² h
V = V1 - V2
Thickness of the tube wall (t):
t = t1 - t2