I. TRUE or FALSE Directions: Write O if the statement is correct and X if the statement is incorrect. Write your answer on the space provided 1. An oblique triangle is a triangle which does not contain any right angle. 2. Oblique triangles may be classified into two - Acute and obtuse. 3. An acute triangle is a triangle whose angles are all less than 90 degrees. 4. An obtuse triangle is a triangle in which one of the angles is more than 90 degrees. 5. The angle of elevation is the angle from the horizontal line of sight of the observer to the object below. 6. Line of sight is an imaginary line that connects the eye of an observer to the object being observed. 7. Law of sines that in any triangle ABC, Sin A _ sing _ sinc b C 8. The angle of elevation is the angle from the horizontal line of sight of the observer to the object above. 9. When the measure of two sides and an angle opposite one of them are given, you may use the Law of Sines to find the measure of another angle of the triangle. 10. You can use the Law of Sines if two angles and one side are given. II. MULTIPLE CHOICE Directions: Choose and write the letter of the correct answer on the space provided before each number. 1 1. If angle A is an acute angle and a2b, then there is exactly a. One solution b. No solution c. two solutions d. none of these 12. If angle A is an acute angle, a b, then there is exactly one solution. a. Acute b. Right c. Obtuse d. none of these 14. If angle Ais an acute angle a b sin A, then there are a. One solution b. No solution c. two solutions d. none of these 15. If angle A is a/an , a