Rhombus
Side
of a rhombus: a
Diagonals:
d1, d2
Consecutive
angles: α, β
Altitude:
H
Radius
of inscribed circle: r
Perimeter:
L
Area:
S
Figure
Trapezoid
Bases of
a trapezoid: a,b
Midline:
q
Altitude:
h
Area:
S
Figure
Isosceles
Trapezoid
Bases
of a trapezoid: a, b
Leg:
c
Midline:
q
Altitude:
h
Diagonal:
d
Radius
of circumscribed circle: R
Area:
S
Figure
Labels:
Mathematician
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