
A heptagon is a plane figure with seven sides and seven angles. In a regular heptagon, in which all sides and all angles are equal, the sides meet at an angle of approximately 128.6 degree (angle)s. Its Schläfli symbol is {7}. The area of a regular heptagon of side length ''a'' is given by : A regular heptagon is not constructible with straightedge and compass. The United Kingdom currently (2003) has two heptagonal coins, the british coin Fifty Pence and british coin Twenty Pence pieces. Strictly, the shape of the coins is a curvilinear heptagon: the sides are curved outwards so that the coin will roll smoothly in vending machines. The heptagon is also sometimes referred to as the ''septagon'', using "sept-" (an elision of Wiktionary:septua-, a Latin-derived numerical prefix) for seven, rather than Wiktionary:hepta-, a Greek language-derived numerical prefix. ==See also== *geometry *heptagonal number Polygons
Look at Talk:Hexagon and Talk:Diagonal. We know the figure for a hexagon is 25, but does anyone know the figure for the heptagon?? In addition, can anyone find a pattern?? Please put the formula in at Talk:Diagonal if you know a formula. User:66.32.241.33 00:05, 13 Jun 2004 (UTC)
See other meanings of words starting from letter:
Words begining with Heptagon:
Heptagon
Heptagon
Heptagonal_number
Heptagonal_pyramidal_number
Heptagonal_pyramidal_number
Heptagon
A heptagon is a plane figure with seven sides and seven angles. In a regular heptagon, in which all sides and all angles are equal, the sides meet at an angle of approximately 128.6 degree (angle)s. Its Schläfli symbol is {7}. The area of a regular heptagon of side length ''a'' is given by : A regular heptagon is not constructible with straightedge and compass. The United Kingdom currently (2003) has two heptagonal coins, the british coin Fifty Pence and british coin Twenty Pence pieces. Strictly, the shape of the coins is a curvilinear heptagon: the sides are curved outwards so that the coin will roll smoothly in vending machines. The heptagon is also sometimes referred to as the ''septagon'', using "sept-" (an elision of Wiktionary:septua-, a Latin-derived numerical prefix) for seven, rather than Wiktionary:hepta-, a Greek language-derived numerical prefix. ==See also== *geometry *heptagonal number Polygons
Heptagon
Look at Talk:Hexagon and Talk:Diagonal. We know the figure for a hexagon is 25, but does anyone know the figure for the heptagon?? In addition, can anyone find a pattern?? Please put the formula in at Talk:Diagonal if you know a formula. User:66.32.241.33 00:05, 13 Jun 2004 (UTC)
See other meanings of words starting from letter:
H
HA | HB | HC | HD | HE | HF | HG | HI | HJ | HK | HL | HM | HN | HO | HP | HR | HS | HT | HU | HW | HX | HY | HZ |Words begining with Heptagon:
Heptagon
Heptagon
Heptagonal_number
Heptagonal_pyramidal_number
Heptagonal_pyramidal_number
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