Respuesta :

Answer:

Incentre

Step-by-step explanation:

A triangle is a closed area in a plane bounded by three lines known as sides of a triangle.  

There will be 3 angles in a triangle.

Consider the point of concurrency of three bisectors.

Let ABC be one triangle and AI and BI are bisectors of A and B meeting at I.

Then we have since AI is angle bisector of A, I would be equidistant from sides BA and AC.  Similarly since BI is angle bisector of B, I would be equidistant form BC and BA.

It follows that I is equidistant from all the sides, and hence a centre can be drawn touching all sides of the triangle.

The circle is called in circle and the point I,  the point of concurrency of the angle bisectors of a triangle, is the incentre of the triangle.