2. Choose from the given sets of information of a triangle that can be solve using the Cosine Law? A. The lengths of two sides and the included angle B. Two angles and the length of one side C. The lengths of two sides and one non-included angle D. The measure of the three angles 3. Which of the following cannot be used to complete the statement, 'The Cosine Law states that in any triangle ABC A. a= b + c2- 2bc cos A B. b?= a+ c2-2ac cos B C. c? = a + b2- 2ab cos C D. c = a2 + b 2 For questions 4-5, refer to the figure at the right. х 41" 10 4. Which equation will solve x? 36 sin 36 sin 41 sin 36 х A. sin 41 B.- X 10 C. - sin 41 sin 36 D.- 10 sin 41 sin 36 10 x 10 5. What is the value of x? A. 5 units B. 9 units C. 15 units D. 20 units
