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Heron's formula
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Contents
1
English
1.1
Alternative forms
1.2
Etymology
1.3
Proper noun
English
edit
English
Wikipedia
has an article on:
Heron's formula
Wikipedia
Alternative forms
edit
Hero's formula
Etymology
edit
Named after Hero of Alexandria.
Proper noun
edit
Heron
's
formula
The
formula
A
=
s
(
s
−
a
)
(
s
−
b
)
(
s
−
c
)
{\displaystyle A={\sqrt {s(s-a)(s-b)(s-c)}}}
, where
a
,
b
, and
c
are the
sidelengths
of a
triangle
,
s
is its
semiperimeter
, and
A
is its
area
.