 |
 |
 |
||||
Pentagon |
||||||
 |
||||||
| $$\textbf{Area of the pentagon}$$ | ||||||
$$A = \frac{1}{4} · 5 · b^2 · \frac{\cos\big(\frac{\pi}{5}\big)}{\sin\big(\frac{\pi}{5}\big)} $$ | ||||||
| $$\textbf{Perimeter of the pentagon}$$ | ||||||
| $$P = 5 · b $$ | ||||||
|
|
|
||||
Pentagon |
||||||
|
||||||
| $$\textbf{Area of the pentagon}$$ | ||||||
| $$A = \frac{1}{4} · 5 · b^2 · \frac{\cos\big(\frac{\pi}{5}\big)}{\sin\big(\frac{\pi}{5}\big)} $$ | ||||||
| $$\textbf{Perimeter of the pentagon}$$ | ||||||
| $$P = 5 · b $$ | ||||||