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Geometry Formulas for Polygons
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Right Triangle
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Equilateral Triangle
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Rectangle
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Parallelogram
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General Quadrilateral
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Cyclic-Inscriptable Quadrilateral
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General Triangle
hc = length of altitude on side c, tc = length of bisector of angle C, mc = length of median to side c.
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(Pythagorean)
(Bretschneider's Formula)
(Law of Cosines)
(Heron's formula)
The following symbols are used in these polygon formulas:
K = area
r= radius of inscribed circle
R = radius of circumscribed circle
p and q are diagonals
n= number of sides
θ = one of the vertex angles
Source: CRC Standard Math Tables, 1987
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Rhombus
Trapezoid
Regular Polygon
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Cyclic Quadrilateral
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(Brahmagupta's
formula)
Copyright: 1996 - 2026 |
About RF Cafe RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a lady's voice announced "You've Got Mail" when a new message arrived... |
Copyright 1996 - 2026 All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledge My Hobby Website: My Daughter's Website: |
