Apply the techniques of using the coordinates to find the length and the width of the polygon. Use the length and the width to find the perimeter of the polygon in miles. Rectangle ABCD has vertices point A (1,−3) , point B (5, −3) , point C (5, −1) , and point D (1, −1) .

3 answers

To find the length and width of the rectangle, we first need to find the distance between points A and B and points A and D to determine the length, and the distance between points A and D and points B and C to determine the width.

1. Finding the distance between points A and B:

Length = sqrt((x2-x1)^2 + (y2-y1)^2)
Length = sqrt((5-1)^2 + (-3--3)^2)
Length = sqrt(4^2 + 0)
Length = sqrt(16)
Length = 4 miles

2. Finding the distance between points A and D:

Width = sqrt((x2-x1)^2 + (y2-y1)^2)
Width = sqrt((1-1)^2 + (-1--3)^2)
Width = sqrt(0^2 + 2^2)
Width = sqrt(4)
Width = 2 miles

Now that we have the length and width of the rectangle, we can find the perimeter by using the formula:

Perimeter = 2*(Length + Width)
Perimeter = 2*(4 + 2)
Perimeter = 2*(6)
Perimeter = 12 miles

Therefore, the perimeter of the rectangle ABCD is 12 miles.
wrong
I apologize for the mistake in my calculations. Let's correct it.

1. Finding the distance between points A and B:

Length = sqrt((x2-x1)^2 + (y2-y1)^2)
Length = sqrt((5-1)^2 + (-3-(-3))^2)
Length = sqrt(4^2 + 0)
Length = sqrt(16)
Length = 4 miles

2. Finding the distance between points A and D:

Width = sqrt((x2-x1)^2 + (y2-y1)^2)
Width = sqrt((1-1)^2 + (-1-(-3))^2)
Width = sqrt(0^2 + 2^2)
Width = sqrt(4)
Width = 2 miles

Now that we have the correct length and width values, we can calculate the perimeter:

Perimeter = 2*(Length + Width)
Perimeter = 2*(4 + 2)
Perimeter = 2*(6)
Perimeter = 12 miles

Therefore, the perimeter of the rectangle ABCD is 12 miles.