a

b

c

area triangolo
S = a*b*sin(γ) /2
S = a*c*sin(β)/2
S = b*c*sin(α)/2

S = a*b*sin(γ) / 2 = 21.25  (d)

noti 3 elementi, calcolare quarto

a = 2S/(b*sin(γ)) = 7.49 ( e)

b = 2S / (a*sin(γ)) = 6.7 (f)

sin(γ) = 2S / (a*b) = 0.85 (g)

asin(g) = 1.01 rad (h)

c = 2s / (A*SIN(β))=6.9 (i)

sin(β) = 2S / (a*c) = 0.82 (j)
asin(β) = .97 (k)

sin(α) = 2*S / (b*c) = 0.92 ( l)
alfa = asin(α) = 1.17 (m)

A = (-0.58, -4.97)
B = (6.32, -4.97)
C = (2.06, 1.19)
poli1, c, a, b = Polygon(A, B, C)
Testopoli1: "Area di  " + (Name[A]) + (Name[B]) + (Name[C]) + " = " + poli1
α = Angle(B, A, C)
β = Angle(C, B, A)
γ = Angle(A, C, B)
d: a * b * sin(γ) / 2
e: 2 * d / (b * sin(γ))
f: 2 * d / (a * sin(γ))
g: 2 * d / (a * b)
h: asin(g)
i: 2 * d / (a * sin(β))
j: 2 * d / (a * c)
k: asin(j)
l: 2 * d / (b * c)
m: asin(l)