Please help me answer question 5 angle ofinationasures angle above theizontal. Anle ofressionasures anle below thezontal.12. A ship's chief navigator isplotting the course for a tourof three islands. The first islandis 12 miles due west of thesecond island. The third islandis 18 miles due south of thesecond island.a) Do you have enoughinformation to determineFirstislandWNS12 mi.Eb) Determine the measure of LA.Is LA an angle of inclination oran angle of depression? Why?c) Describe another method to solve part b.Which method do you prefer? Why?Secondisland18 mi.Thirdislandthe bearing required to saildirectly back from the third island to the first island? Explain.b) If your answer to part a is yes, describe how the navigator woulddetermine the bearing.13. Assessment Focus A carpenter is building a bookshelf against the slopedceiling of an attic.a) Determine the length of the sloped ceiling, AB,used to build the bookshelf.sloped ceilingBURS3.24 mBSALEEY1.1 Trigonometric Ratios in Right Triangles2.35 mс11

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12. A ship's chief navigator is plotting the course for a tour of three islands. The first island is 12 miles due west of the second island. The third island is 18 miles due south of the second island. a) Do you have enough information to determine First island W N S 12 mi. E Simas Second island 18 mi. Third island the bearing required to sail directly back from the third island to the first island? Explain. b) If your answer to part a is yes, describe how the navigator would determine the bearing.