Chapter 8.2, Problem 2E

To determine

To find: Find the different option out of given options.

Answer to Problem 2E

The option $BC-AC$ is different from other options. It has its value 4 while other options have 10.

Explanation of Solution

Given information: The given options and figure is given below.

  

Calculation: In order to find the difference between options, we have solve the all the options.

Hence,

The value of $AC+CB$ ,

  $\begin{array}{l}AC+CB=3+7\\ \therefore AC+CB=10\end{array}$

The value of $BC-AC$ ,

  $\begin{array}{l}BC-AC=7-3\\ \therefore BC-AC=4\end{array}$

The value of $AB$ ,

  $\therefore AB=10$

The value of $CA+BC$ ,

  $\begin{array}{l}CA+BC=3+7\\ \therefore CA+BC=10\end{array}$

Therefore, the option $BC-AC$ is different from other options. It has its value 4 while other options have 10.