Chapter 9.1, Problem 4CE

a.

To determine

Torun the program in exercise 3 for the given points.

Explanation of Solution

Given:

The inputis $(4,7),(5,9),(6,18)$

Calculation:

DRY RUN of the program:-

INPUT:

Enter the x-coordinate of first point

  $x_1=4$

Enter the y-coordinate of first point

  $y_1=7$

Enter the x-coordinate of second point

  $x_2=5$

Enter the y-coordinate of second point

  $y_2=9$

Enter the x-coordinate of third point

  $x_3=6$

Enter the y-coordinate of third point

  $y_3=18$

OUTPUT:

The perimeter of triangle is $P=22.472$ .

b.

To determine

To run the program in exercise 3 for the given points.

Explanation of Solution

Given:

The input is $(74,-18),(100,36),(120,0)$

Calculation:

DRY RUN of the program:-

INPUT:

Enter the x-coordinate of first point

  $x_1=74$

Enter the y-coordinate of first point

  $y_1=-18$

Enter the x-coordinate of second point

  $x_2=100$

Enter the y-coordinate of second point

  $y_2=36$

Enter the x-coordinate of third point

  $x_3=120$

Enter the y-coordinate of third point

  $y_3=0$

OUTPUT:

The perimeter of triangle is $P=150.512$ .