Geometrija v ravnini Flashcards

(14 cards)

1
Q

Paralelogram ploscina

A

p=av
p=absinalfa

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2
Q

pravokotnik ploscina

A

p=ab

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3
Q

kvadrat ploscina

A

p= a*a

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4
Q

romb ploscina

A

p=ef/2= aVa=a*asinalfa=anakvadratsinbeta

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5
Q

enakokraki trapez srednijca in ploscina

A

s= a+c/2
S=s*v

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6
Q

poljubni trapez ploscina

A

S=s*v

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7
Q

Deltoid ploscina

A

S=e*f/2= absinalfa

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8
Q

Trikotnik ploscina

A

heronov, vsaka stranica z visino polovic, absingama/2, acsinbeta/2, bcsinalfa/2, rs, abc/4R , 2Rnalvadratsinalfasinbetasingama

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9
Q

enakostranicni trikotnik ploscina, visina, polmera

A

p=a na kvadrat koren3/4
v= a koren 3 polovic
r= a koren 3 sestin
R= a koren 3 tretjin

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10
Q

visinski izrek

A

Vc kvadrat je enako a ena krat b1

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11
Q

evklidov izrek

A

a na kvadrat je enako a ena krat c
b na kvadrat je b ena krat c

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12
Q

obseg in ploscina kroga

A

o je na pir
p je 2 pi r kvadrat

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13
Q

krozni lok

A

l je pi r alfa/180
l je r alfa(rd)

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14
Q

krozni izsek

A

p je pi r kvadrat alfa/360
p je rl polovic

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