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Common Cross Sections
Circle
CIRCLE 		Half Circle

HALF CIRCLE 		Quarter Circle
QUARTER CIRCLE 		Circular Section
CIRCULAR SECTION
Parabolic
PARABOLIC 		Half Parabolic
PARABOLIC HALF 		Sub Parabolic
SUBPARABOLIC HALF 		General Spandrel
GENERAL SPANDREL
Elliptical Half
ELLIPSE 		Elliptical Half
ELLIPTICAL HALF 		Elliptical Quarter
ELLIPTICAL QUARTER 		Triangle
TRIANGLE
Rectangle
RECTANGLE 		Parallelogram
PARALLELOGRAM 		Isosceles Trapezoid
ISOSCELES TRAPEZOID 		Trapezoid
TRAPEZOID
Regular Polygon
REGULAR POLYGON 		Circular Segment
Shaded Area
Useful Geometry
Circumscribed Polygon
Circumscribed Polygon 		Inscribed Polygon
Inscribed Polygon 		Area of Shaded Region
Shaded Area
Circle Inscribed in a Triangle
Radius of an
Inscribed Circle 		Radius of a circle circumscribing a known triangle.
Radius of a
Circle
Common Beam Cross Sections

I-BEAM
TAPERED I-BEAM
UNEVEN I-BEAM
GENERAL SHAPE

SQUARE CHANNEL
TAPERED CHANNEL
EQUAL LEG L BEAM
RECTANGULAR L BEAM

T-BEAM
SEMI-TAPERED T-BEAM
TAPERED T-BEAM
RECTANGULAR CROSS
Standard Beams

STEEL W TYPE I-BEAMS
STEEL S TYPE I-BEAMS
STEEL CHANNELS

STEEL ANGLES
ALUMINUM CHANNELS
ALUMINUM I-BEAMS
Glossary