FORMULE GEOMETRICHE

RETTANGOLO

A = b x h

b = A / h

h = A / b

QUADRATO

A = b x h = l x l = l 2

l= √A

A = b x h

PARALLELOGRAMMA

b = A / h

h = A / b

A = b x h / 2

TRIANGOLO

b = 2A / h

h = 2A / b

ROMBO

A = D x d / 2

D = 2A /d

d = 2A / D

TRAPEZIO

A = ( B + b ) x h / 2

h = 2A / ( B + b)

( B + b) = 2A / h

2p = l x 4

2p = l 1 +l 2 + B +b

2p = a + b + c

2p = 4 x l

2p = 2 x (b + B)

2p = (b + l) x 2