AREAS DE FIGURAS PLANAS

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CUADRADO Area = L = D = L
RECTANGULO Area = A . B D = //pitagoras
PARALELOGRAMO Area = A H = A B sen D1 = D2 =
TRAPECIO Area = = M H M = (A + B)/2

TRIANGULO Area = AH/2 Area = PC Area = S = (A+B+C)/2
TRIANGULO EQUILATERO Area = AH/2 Area = H =
PENTAGONO REGULAR Area = (5/8)R² A = (1/2)R P = (1/4) R
HEXAGONO REGULAR Area = D = 2 A D = S =
OCTAGONO REGULAR Area = 2AS 0.83 Area = A = S tan 22.5º 0.415 S S = D cos 22.5º 0.924 D D =

POLIGONO Area = A1 + A2 + A3 Area =
CIRCULO Area = P = 2 R = D
CORONA CIRCULAR Area = Area = (d+b)d b =
SECTOR CIRCULAR Area = B =
SEGMENTO CIRCULAR Area = S = 2 R R = H = R(1- ) = F = en radianes)
ELIPSE Area = P Donde p es perimetro