If the angular bisector of an angle of a triangle bisects the opposite side , prove that the triangle is an isosceles triangle. ~Thanks in advance! ​

See Below.

Step-by-step explanation:

Please refer to the attachment below.

In order to complete the proof, we create a new segment DE that extends from D and is equal to AD. The endpoint of DE will be connected to B.

Statements:                                             Reasons:

                                    Given

                                           Definition of Bisector

                                           Given

                                Vertical Angles are Congruent

                               SAS Congruence

                               CPCTC

                                   Given

                                Definition of Congruence

                                Substitute

                                         Isosceles Triangle Theorem

                                         CPCTC

                                         Substitute

                            Isosceles Triangle Definition

this is your answer look it once.thank you.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,