AZALERAK

KARRATUA

FORMULA A = l x l

OSAGAIAK A = azalera. l = aldea.

LAUKI ZUZENA

FORMULA A = b x h OSAGAIAK A = azalera b = oinarria h = altuera

ERRONBOIDEA

FORMULA A = b x h

OSAGAIAK A = azalera b = oinarria h = altuera

TRIANGELUA

FORMULA A = b x h 2 OSAGAIAK A = azalera b = oinarria h = altuera

ERRONBOA

FOMULA A = D x d 2 OSAGAIAK A = azalera D = diagonal nagusia d = diagonal txikia

TRAPEZIOA

FORMULA B + b A = ------- x h 2 OSAGAIAK A = azalera B = oinarri nagusia b = oinarri txikia h = altuera

PENTAGONOA

FORMULA A = P x a 2 OSAGAIAK A = azalera P = perimetroa a = apotema

HEXAGONOA

FORMULA A = P x a 2 OSAGAIAK A = azalera P = perimetroa a = apotema

ZIRKULUA

FORMULA A = π x r² OSAGAIAK A = azalera π = phi = ( 3, 14) r = erradioa

ZIRKUFERENTZIA

FORMULA L = 2 x π x r OSAGAIAK L = luzera π = phi = ( 3, 14) r = erradioa