Formeln von 2D-Figuren - (Flächen)

(1)

A = ^{𝑔 ∙ ℎ}₂ = z.B.: ^{c ∙ h𝑐}₂ U = a + b + c g = Grundlinie = a, b, c h = Höhe = ha; hb; hc

A = ^{𝑎 ∙ 𝑏}

2 oderA = ^{c ∙ h𝑐}

2 U = a + b + c

a² + b² = c² c = √𝑎²+ 𝑏² a = √𝑐²− 𝑏²

A = ^{𝑎² ∙ √3}₄ U = 3 ∙ a ha = ^{𝑎 ∙ √3}

2

A = a² ^oder A = ^d²₂ U = 4 ∙ a ^{d = a ∙ √}2 a = ^𝑑

√2

A = a ∙ b U = 2 a + 2 b

U = 2 ∙ (a + b)

A = ^{𝑒 ∙ 𝑓}₂ ^oder A = a ∙ ha U = 4 ∙ a

A = a∙ha oder A = b∙hb U = 2 a + 2 b U = 2 ∙ (a + b)

A = ^𝑎+𝑐₂ ∙h U = a + b + c + d

A = ^{𝑒 ∙ 𝑓}₂ U = 2 a + 2 b U = 2 ∙ (a + b)

_{A =}^{3𝑎² ∙ √3}

2 U = 6 ∙ a A = 6 ∙ A glsDr

A = r² π U = 2 r π oder A = d π

d = 2r r = ^𝑑₂

A = r² π ∙ ^𝛼

360 U = 2 r π ∙ ^𝛼

360

A = π (r1² - r2²) U = 2π (r1 + r2)