Answer:167
Explanation:if the perimeter of the yard is 638 and the width of the yard is 152 you Can multiple that by 2 which would then be 304 so you have the total perimeter for both width sides how to find the length it would be 638-304 which is 334 so 334 is the total of both side lengths together so we divided it by 2 to find the length of one side and 334 / 2 is 167