13. Mark has a tarp that is 24 ft wide that he is going to fold in half to cover both sides of a tent that he has / put up. The front of the tent is 6 ft long. The middle fold of the tarp runs along the top of the tent. He '2 n \"'9 then pegs the side of the tarp into the ground 4ft from the bottom corner of the tent so that the tarp does not touch the sides of the tent, as shown by the diagram. '- 3 "-l_ ' "l What is the measure of the acute angle the tarp makes with the ground, on each side of the tent? M635 9 12.F.TF. 2 A. 30\" B. 36" C. 54" D. 71"