12. In the diagram below, find 0 to the nearest tenth of a degree. 13. The cube shown below has a side length of 3 units and vertex A at A (0, 0, 0). Identify the coordinates of the other vertices. 14. Find the length of AB in the diagram below. Round your answer to the nearest hundredth. 43 015. Find the area of the annulus in the concentric circles (one with radius 4 cm and the other with radius 1 1 cm) shown below. Leave answer in it form. 4 cm 1 1 cm 16. Reflect the figure below across line c, and then reflect the image across line d. In the diagram, cl|d. 17. Determine the value of x in the diagram below. 9 in 13 in