aa is the length of the regular polygon's side; rr is the incircle radius or apothem of the regular polygon Since we want to find the area of a decagon, we can replace nn with 1010. Consequently, we can find the value of rr using aa and nn with the help of this equation: r=at...
Incircle radius or apothem (r) (equal to a2×tan(180°7)2×tan(7180°)a). Craving for more polygon-related knowledge? Here are some of our related tools you can check out: Polygon calculator Dodecagon area calculator Dodecagon calculator Heptagon calculator Decagon area calculator Decagon ...
Martha invited 4 friends to go with her to the movies. There are 120 different ways in which they can sit together in a row of 5 seats, one person per seat. In how many of those ways is Martha sitting in the middle seat?查看答案...
To provide insight into the dynamics of water content in the topsoil under different local stand density conditions over the growing season, two soil dielectric aqua meters (length 20 cm, model EC–20 ECHO Decagon Devices, Inc., USA) were installed in every stand in a small gap about 50 ...
Figure 2. Construction octagon and decagon sequences of encircled lenses, with the polygons highlighted in green. Three (a) and four lenses (b,c) make up the sequences that are characterized by center angle α1 values of 90° and 72°, respectively. The intersection of diagonals (highlighte...