Question 4 - 20 A man is staring at a tree at a 30 degree angle, 43 yards from the tree. How tall is the tree?
Answer 4 – 20 Tan 30 = x/35 35 tan 30 = x X = 20. 207 yards
Question 4 - 30 A man in a car is staring up to the top of his work building at a 55 degree angle. He is 57 feet away from the building. What is the height of the office building?
Answer 4 – 30 Tan 55 = x/57 57 tan 55 = x X = 81. 404 feet
Question 4 - 40
Answer 4 – 40
Question 4 - 50 A fisherman was out on a fishing trip when he noticed a lighthouse 100 meters away. He was wondering how tall the lighthouse was. Looking up at a 60 degree angle, how tall was the lighthouse?
Answer 4 – 50 Tan 60 = x/100 100 tan 60 = x X = 173. 205 meters tall
Question 5 - 10 ? Is the opposite of Secant
Answer 5 – 10 Cosine
Question 5 - 20 True/False One can use SOHCAHTOA on any triangles
Answer 5 – 20 False; only right triangles
Question 5 - 30 How many special triangles are there with SOHCAHTOA?