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2
4 a A
a U
=
⋅
=
Quadrat
Quadrat RechteckRechteck
b a A
b a U
⋅
=
+
⋅
= 2 ( )
Begriffe
Begriffe: U=Umfang A=Flächeninhalt
Parallelogramm Parallelogramm
h g A
b a U
⋅
=
+
⋅
= 2 ( )
Raute Raute
2 4
f A e
a U
= ⋅
⋅
=
Drache Drache
2
) ( 2
f A e
c a U
= ⋅
+
⋅
=
Dreieck Dreieck
2 h A g
c b a U
= ⋅
+ +
=
Kreis Kreis
r2
A
d U
⋅
=
⋅
= π
π
Trapez Trapez
h m c h
A a
d c b a U
⋅
= + ⋅
=
+ + +
= 2
) ( m