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quadrato, Rombo, Triangolo, Rettangolo, Paralelograma, Trapezio - Coggle…
quadrato
A = L x L
2P = L x 4
L = √A
A = (
d
x
d
) : 2
Rombo
A = (D x
d
) : 2
2P = L x 4
D = 2 x A :
d
d = 2 x A : D
D/d = [(A x 2) : fraz.] √ x fraz.
A = l x
h x 2
Triangolo
A = b x h : 2
2P = L + L + L
h = (A x 2) : b
b = (A x 2) : h
A = (AB x AC) : 2
h = AB x CA : BC
se
rettangolo
Rettangolo
A = b x h
2P = (b+h) x 2
b = A : h
h = A / b
Paralelograma
A = b x h
2P = (b+h) x 2
h = A : b
b = A : h
Trapezio
A = [(B + b ) : 2 ] x h
h = (2 x A) : (B + b)
B = [(2 x A) : h] - b
b = [(2 x A) : h] - B
2P =
l+l+l+l
AB + CD = [(A x 2) : h]
CD = (rp. - pro.) : 2
AB = CD + pro.