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Rhombus
Perimeter
P
=
4
·
a
Area
A
=
a
·
h
=
d
1
·
d
2
2
Height
h
=
a
·
s
i
n
α
Diagonal 1
d
1
=
2
a
·
s
i
n
α
2
Diagonal
2
d
2
=
2
a
·
c
o
s
α
2
Keywords: rhombus, perimeter, area, height, diagonal