Find the perimeter of rectangle ABCD , with vertices A(−8,3) , B(−1,3) , C(−1,−6) , and D(−8,−6) .(

1 answer

To find the perimeter of the rectangle, we need to add up the lengths of all four sides.

The length of side AB can be found using the distance formula:
AB = sqrt[(x2 - x1)^2 + (y2 - y1)^2]
AB = sqrt[(-1 - (-8))^2 + (3 - 3)^2]
AB = sqrt[7^2 + 0]
AB = sqrt[49] = 7

Similarly, the length of side BC, CD, and AD are also 7 units each.

Therefore, the perimeter of rectangle ABCD is:
Perimeter = AB + BC + CD + AD
Perimeter = 7 + 7 + 7 + 7
Perimeter = 28 units

So, the perimeter of rectangle ABCD is 28 units.