Alternative Proofs for the Length of Angle
Bisectors Theorem on Triangle

Amelia; Mashadi; Sri Gemawati

doi:https://doi.org/10.14445/22315373/IJMTT-V66I10P519

International Journal of Mathematics Trends and Technology

Research Article | Open Access | Download PDF

Volume 66 | Issue 10 | Year 2020 | Article Id. IJMTT-V66I10P519 | DOI : https://doi.org/10.14445/22315373/IJMTT-V66I10P519

Alternative Proofs for the Length of Angle Bisectors Theorem on Triangle

Amelia, Mashadi, Sri Gemawati

Abstract

The purpose of the paper is to introduces alternative proofs for the length of Angle Bisectors Theorem on Triangle. In this paper the author proofs it with a simple way that uses law of sines, Pythagoras theorem, Ptolemy’s theorem, and similarity.

Keywords

Angle bisector, Ptolemy's theorem, similar triangles

References

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Citation :

Amelia, Mashadi, Sri Gemawati, "Alternative Proofs for the Length of Angle Bisectors Theorem on Triangle," International Journal of Mathematics Trends and Technology (IJMTT), vol. 66, no. 10, pp. 163-166, 2020. Crossref, https://doi.org/10.14445/22315373/IJMTT-V66I10P519