[Will Give Brainliest, please help! ♥] The South Memorial School is designing a new playground. There will be a walkway that diagonally crosses the square playground. The walkway is 55 meters long. I | Include a sketch of the playground and find the length of one side. Round your answer to the nearest 10th. (I've already completed the sketch, as you can see!)

II | Use your answer from Part I to find the perimeter of the playground. Round your answer to the nearest 10th. Show your work.

Helping me understand or giving me the answer would help me out a lot! THank you :]