Brandon and his brother Isaac share a rectangular bedroom. One side is 10 ft long and another side is 13 ft long. Brandon says the
bedroom is 23 ft in perimeter and Isaac says the bedroom is 46 ft
in perimeter. Who is incorrect and why is he incorrect?

your answer is -9

step-by-step explanation:

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.