Chapter 8.2, Problem 24E

To determine

The correct length of AB.

Answer to Problem 24E

  $AB=3.5\text{cm}$

Explanation of Solution

Given:

The given points are:

  

Calculation:

The length of the horizontal segment, the absolute value of the difference of the x coordinates of the end points is taken.

Therefore,

  $\begin{array}{c}AB=\left|1-4.5\right|\\ =\left|-3.5\right|\\ =3.5\text{cm}\end{array}$