Can someone please help me. I have this study guide for geometry and it's my hardest subject. I'm struggling, I do not know what to do. can someone please help me understand this.

Find the a Area = Use the relationships of special right triangles to find the 2 missing sides of each triangle. 12. 13. 813 30 30 60 60 12 14. 600 15. 14 30 13 - 450 16. 17 . 450 150 8V/2 16 450 Find the measure of missing angle A by using special right triangle shortcuts. 18. 19. B 22 11 A AA Draw a picture and use your trig ratios to answer the following questions. Round answers to the nearest hundredth if necessary. 9. Bob was standing 135 feet away from a large tree. The angle of elevation to the top of the tree was 28. How tall is the tree to the nearest tenth of a foot? 10. Pedro is flying a kite at the park and realizes that all 350 feet of string are out. Maria measures the angle of the string with the ground with her clinometer and finds it to be 52.50. How high is Pedro's kite above the ground? 11. Mel's kite has a 200 foot string. When it is completely out, Tom measures the angle to be 370. How far would Tom need to walk to be directly under the kite? SPECIAL RIGHT TRIANGLES: (45-45-90 and 30-60-90) If we know these special relationships we can find missing angles or sides more quickly using a shortcut. Complete the following triangle given one side is "X". 450 30 450 600 X X