Elena has received grant money to open a local community center. she will do many of the improvements herself to the old building she rents. while touring the building to make her project list, she uses a tape measure to check whether floors, doorways, and walls are square, meaning that they meet at right angles. a elena measures the lobby of the building for new laminate flooring. the length is 30 feet, the width is 16 feet, and the diagonal is 34 feet. is the room square?