1. Which law states that the ratio of sine of an angle of a triangle to its opposite side is equal to the sine of any other angle to its opposite side.? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law 2.Which law states that the square a side of a triangle is equal to the sum of the squares of the other two sides minus twice the product of these sides times the cosine of their included angle? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law 3. What law should be used to solve a triangle, if three sides are given or SSS? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law 4. What law should be used to solve a triangle, if two sides and an opposite angle or SSA? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law For #5 and #6. Two towns A and B are situated along the same level ground. From two observation posts, one on each town, an airplane is observed. The distance from the observation post in A to the airplane is 200 km while from the observation post in B to the airplane, the distance is 300 km. if the angle of elevation of the plane as observed in A is 600. 5. What law should be used to solve the problem above? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law 6. What is the distance between the two towns? A. 324.9 km C. 354.9 km B. 344.9 km D. 364.9 km For #7 and #8. A trapezoid KLMN with KL perpendicular to LM, MN is 15 m long, ∠ = 115 , and the diagonal LN makes an angle of 35with LM. 7. Which is applicable to solve the problem above? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law 8. How long is LN? A. 18.7 m C. 20.7 m B. 19.7 m D. 23.7 m For #9 and #10. A triangular parcel of land with points J, A and C was to be fenced. The length of AC is 150 meters as shown in the figure below. 9. Which is applicable to solve the problem above? A. Cosine Law C. Sine Law B. Newton’s Law D. Tangent Law 10. How much fencing material is to be used in the lot? A. 360 m C. 180 m B. 300 m D. 150 m​