This page provides some insight into Heron's formula and provides some functions to help you calculate the area of a triangle by using it!

a

:5m

b

:5m

c

:9m

s

:9.5m

A

:9.808m2

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Heron’s formula is credited to Heron of Alexandria (c. 62 CE) and used for finding the area of a triangle in terms of the lengths of its sides. In symbols, if a, b, and c are the lengths of the sides:

Then the area can be calculated by:

Where:

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