Rectangle

Ellipse

A = W X L

A = 3.142 X A X B
C = 6.283 X ( A1+ B2 ) / 2

Parallelogram

Rectangular Solid

A = H X L

A1= 2 [ W X L + L X H + H X W ]
V = W X L X H

Trapezoid

Cone

A = H X ( L1 + L2 ) / 2

A1 = 3.142 X R X S + 3.142 X R X R
V = 1.047 X R X R X H

Triangle

Cylinder

A = ( W X H ) / 2

A1 = 6.283 X R X H + 6.283 X R X R
V = 3.142 X R X R X H

Circle

Elliptical Tanks

A = 3.142 X R X R
C = 3.142 X D
R = D / 2
D = 2 X R

Vu = 3.142 X A X B X H
A1 = 6.283 X ( A2 + B2 ) / 2 X H

Sector of Circle

Sphere

A = ( 3.142 X R X R X a ) / 360
L = .01745 X R X a
a = L / ( .01745 X R )
R = L / ( .01745 X a )
(a=alpha)

A1 = 12.56 X R X R
V = 4.188 X R X R X R