Like many students of 4 º ESO know, Heron of Alexandria lived around the third century C. Are known several of his works, but is remembered for called Heron's formula , allowing us to calculate the area of \u200b\u200ba triangle known three sides. It is therefore necessary to know the height or any angle.
If we call a, b, ca ys the three sides semiperimeter:
The area can be expressed as:
[*]
attributed to Heron The show is truly amazing. Combining simple geometric elements comes to building one of the richest and most elegant proofs of all mathematical. Shortly before the end of the process we get:
[**]
This expression is very close to what we established as final [*]. Defying
readers here to reason how to get [*] after [**].
If we call a, b, ca ys the three sides semiperimeter:
The area can be expressed as:
[*] attributed to Heron The show is truly amazing. Combining simple geometric elements comes to building one of the richest and most elegant proofs of all mathematical. Shortly before the end of the process we get:
[**] This expression is very close to what we established as final [*]. Defying
readers here to reason how to get [*] after [**].
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