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Periodico di matematiche - Mathesis

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“master_3_2011” — 2012/1/7 — 22:53 — page 13 — #13<br />

GabriElE lolli<br />

13<br />

Gabriele Lolli 13<br />

Si prenda un segmento ST = OP centrato in H.<br />

S<br />

H F<br />

T<br />

Esso fa equilibrio a MO nel senso che<br />

HK : KN = MO : ST.<br />

S<br />

H F<br />

T<br />

K<br />

K<br />

N<br />

P<br />

M<br />

A O Q<br />

M<br />

A O Q<br />

I segmenti OP al variare <strong>di</strong> O in AC riempiono il segmento parabolico ABC, mentre<br />

i segmenti MO riempiono il triangolo CF A.<br />

N<br />

P<br />

E<br />

B<br />

E<br />

B<br />

C<br />

C

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