krog Flashcards

1
Q

včrtan krog polmer v enakostranični trikotnik

A

r=(a√3):6

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2
Q

očrtani krog polmer v enakostranični trikotnik

A

R=(a√3):3

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3
Q

krog (obseg, ploščina)

A

o=2πr
S=πr2

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4
Q

dolžina krožnega loka

A

l=(πra):180

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5
Q

ploščina krožnega izseka

A

Sk.i.=(πr2a):360

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6
Q

ploščina krožnega odseka

A

Sk.o.=(πr2a):360-(r2*sina):2

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7
Q

ploščina krožnega kolobarja

A

Sk.k.=π(r12-r22)

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