The perimeter of the figure is 18 units. Complete the statements to find the side lengths.1. Find the distance from A to B. Explain how you found this distance. Write your answer in the space below.2. Add the distances of the vertical and horizontal segments. These are the distances from A to B, B to C, and C to D. Show how you found the total. Write your answer in the space below.3. Use the perimeter to find the length of segment AD. This is the distance from A to D. Explain how you found your answer. Write your answer in the space below.