Question

A. Find and explain the error in the work shown.

b. Fix the error and show work with the correct result.

Answer 1

Well, first they're assuming that the m<ABC = 90

The value of m<ABC is not given, so they aren't allowed to make up values based on the way the picture looks.

It is given that BD bisects <ABC, which means it splits the angle evenly..

Giving this equation: (x-5) = (2x-6)

Solving for x

-5 + 6 = 2x - x

1 = x