# Theorem of internal triangle's bisector

## Description

The bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle

Related formulas## Variables

s_{a} | The smaller segment of the side that divided by the bisector, neighboring to the smaller of the rest sides of the triangle (m) |

a | The side of the triangle divided by the bisector (m) |

c | The side neighboring to the smaller segment (m) |

b | The side neighboring to the longer segment (m) |