How do you find the perimeter of a triangle using one side length and two angles of 60 degrees

What is the range? can’t seem to find it out

Can someone answer this question for me

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.