Teht. 437

maan taso

polttoaineen pinta

Pohjaympyrän säde (tilavuudesta)
 r = sqrt(A_ pohja / pi) = 2,384...dm.

Polttoainetta on yli puolen välin.
-> keskuskulma (kosinista) α = 139.97...°

A_ (ilma) = A (sektori) - A (kolmio)
            = 5.115...dm2

V (polttoaine) = V (tynnyri) - V (ilma)
                     = 200 l - 57.295 l
                     = 142.704...l

139.97...°

n = 32 cm - r = 8.158 cm

a = Surface(s, (sqrt(200 / ((11.2 * π))) * cos(t)), (sqrt(200 / ((11.2 * π))) * sin(t)), s, 0, 11.2, t, 0, (2 * π))
b = Surface(0, (s * cos(t)), (s * sin(t)), s, 0, sqrt(200 / ((11.2 * π))), t, 0, (2 * π))
c = Surface(11.2, (s * cos(t)), (s * sin(t)), s, 0, sqrt(200 / ((11.2 * π))), t, 0, (2 * π))
d: z = (-sqrt(200 / ((11.2 * π))))
A: (0, 0, 3.2 - sqrt(200 / ((11.2 * π))))
e: z = 3.2 - sqrt(200 / ((11.2 * π)))
g = CurveCartesian(0, (sqrt(200 / ((11.2 * π))) * cos(t)), (sqrt(200 / ((11.2 * π))) * sin(t)), t, 0, (2 * π))
r: sqrt(200 / ((11.2 * π)))
α: acosd((3.2 - r) / r)
B: (0, (cos(90° - α) * r), (sin(90° - α) * r))
C: (0, ((-cos(90° - α)) * r), (sin(90° - α) * r))
f = Segment(B, C)
D: (0, 0, 0)
h = Segment(D, B)
i = Segment(D, C)
β = Angle(C, D, B, xOyPlane)
E = (4, 4)
F = (7, 4)
k = Circle(E, F)
G = Point(k)
H = Point(k)
j = Segment(G, H)
l = Segment(H, E)
m = Segment(G, E)
γ = Angle(H, E, G)
I = (4, 5)
n = Segment(E, I)
k1, g_1, e_1, h_1 = Polygon(E, H, G)
p = CircleSector(E, H, G)