|
Rettangolo
|
|
As
(ABCD) = a·b
As
= BC__· AB__
|
|
Quadrato
|
|
As
(ABCD) = a2
As
= BC2__
|
|
Parallelogramma
|
|
As
(ABCD) = a·h
As
= BC__· AH__
|
|
Triangolo
|
|
|
As
(ABC) =
|
a·h
--------
2 |
|
As
(ABC) =
|
BC__· AH__
--------------
2 |
|
|
Rombo
|
|
|
As
(ABCD) =
|
d1·d1
--------
2 |
|
As
(ABCD) =
|
BD__· AC__
--------------
2 |
|
|
Trapezio
|
|
|
As
(ABCD) =
|
(b1+ b2) ·h
-----------
2 |
|
As
(ABCD) =
|
(BC__+ AD)__·
AH__
---------------------------
2 |
|
Poligono
circoscritto
|
|
|
As
(ABCDE) =
|
2p ·r
-----------
2 |
= p·r |
|
Poligono
qualunque
|
|
Dividere il poligono
in triangoli,
calcolarne le aree
e poi sommarle
|
