15. You set up a makeshift greenhouse by leaning a square pane of glass against a building. The glass is 4.5 ft long, and it makes a 30 angle with the ground. How much horizontal distance between the building and the glass is there to grow plants? Round to the nearest inch. 16. A square tablecloth has a line of embroidered flowers along the diagonal. The tablecloth is 48 in. on each side. How long is the embroidery line? Round to the nearest inch