Neke Vaznije Teoreme O Cetverouglu Trouglu Mnogouglu I Kruznici Flashcards

1
Q

Kako glasi 1. Teorema?

A

Ako su α, β, i γ UNUTRAŠNJI, a α1, β1, i γ1 VANJSKI uglovi trougla, tada je

α + β + γ= 180°

α1 + β1+ γ1= 360°

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2
Q

Kako glasi 2. Teorema?

A

Ma koja stranica trougla manja je od zbira druge dvije a veća je od duljine njihove razlike:
|b-c|< a < b+c

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3
Q

Kako ide 3. Teorema?

A

Ako su α, β, γ i δ UNUTRAŠNJI, a α1, β1, γ1 i δ1 VANJSKI uglovi četverougla, tada je
α+ β+ γ +δ = 360°
α1+ β1+ γ1 +δ1 = 360°

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4
Q

A 4. Teorema?

A

Broj dijagonala n-tougla je Dn= n(n-3) /2
(polovina)

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5
Q

Koji je zbir unutrašnjih uglova n-tougla?

A

Sn= (n-2)•180 stepeni

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6
Q

Unutrašnji ugao pravilnog n-tougla?

A

α= (n-2)•180 stepeni kroz n

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7
Q

Centralni ugao pravilnog n-tougla

A

ɛ=360 stepeni kroz n

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8
Q

Spoljašni ugao pravilnog n tougla

A

β= 360 stepeni kroz n

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