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# Piping Engineers Must Be Check AREA

Definition: A surface covered by specific shape is called area of that shape. i.e. area of square, circle etc.

1. Square:

Area of Square = L x L = L2

Where L = L Length of side
So if L = 5 cm
Then Area = 5 x 5 = 25 cm2 2. Rectangle:

Area of Rectangle = L x B

Where,
L = Length
B = Width
If L = 10 mm, And B = 6 mm
Then, Area = 10 x 6 = 60 mm2

3. Circle:

Area of Circle = π/4 x D2

Where D = Diameter of the circle

Area of Half Circle = π/8 x D2

Same way we can find out area of quarter of circle Hollow Circle = π x (D2 – d2) / 4

Where D = Diameter of Greater Circle
d = Diameter of Smaller Circle

Sector of Circle = π x D2 x ∅ / 4 x 360 4.Triangle:

Area of Triangle = 1/2 B x H

Where B = Base of Triangle
H = Height of Triangle
5. Cylinder:

Surface area of Cylinder = π x D x H

where H = Height of Cylinder
D = Diameter of Cylinder VOLUME
Definition: A space covered by any object is called volume of that object.

1. Square block:

In square block; length, width and height are equal, so

Volume of Square Block = L x L x L = L3

2. Rectangular Block:

Volume = L x B x H

Where
L = Length
B = Width
H = Height 3. Cylinder:

Volume of Cylinder = Cross Section Area x Length of Cylinder

Volume = 1/4πD2 x H

Where
D = Diameter of the Cylinder
H = Length of Cylinder 4. Prism or Triangle Block:

Volume of Triangle Block = Cross Section Area of Triangle x Length (Area of Right Angle Triangle = 1/2 B H)

Volume = 1/2 B H x L

Where
B = Base of Right Angle Triangle
H = Height of Right Angle Triangle
L = Length of Right Angle Triangle   