Chapter 8, Problem 7CA

(a)

To determine

To Find: The identification for all the vertical angles.

Answer to Problem 7CA

The pair of vertical angles are identified.

Explanation of Solution

Given:

The given diagram is shown in Figure 1

  

Figure 1

Calculation:

From the given figure the pair of vertical angles are,

  $\begin{array}{l}\angle KJL,\angle NJP\\ \angle LJN,\angle KJP\end{array}$

(b)

To determine

To Find: The identification for all the linear pairs.

Answer to Problem 7CA

The required linear pairs are identified.

Explanation of Solution

From the given figure the linear pair are,

  $\begin{array}{l}\angle KJL,\angle LJN\\ \angle KJM,\angle MJN\\ \angle LJM,\angle MJP\end{array}$

(c)

To determine

To Find: The angle at which the turn is made.

Answer to Problem 7CA

The required angle is $\angle KJL$ .

Explanation of Solution

Given:

The person travels on buffalo road to the east and decide to turn left onto carter hill.

Calculation:

Consider that you are travelling to the east on buffalo road and then decide to turn left on the carter hill.

Thus, the required angle is $\angle KJL$ .