...parts the remaining parts of a triangle. These relations are stated in the form of three laws, called the law of sines, the law of cosines, and the law of tangents. polygon. 179. The law of sines. 1. Let h be the length of the perpendicular from C to AB in triangle...

...trigonometric solution of oblique triangles depends upon the application of three laws, which are called the law of sines, the law of cosines, and the law of tangents, respectively. We shall proceed to prove these three laws. 99. Law of Sines. Any two sides of a triangle...

...represented by a line. Explain why the cosine is represented by the line which you designate. A. a) State the Law of Sines, the Law of Cosines, and the Law of Tangents. b) Given the sides a and c and the included angle B of an oblique triangle, write formulas for finding...

...oblique, as well as right triangles. An oblique triangle is one which does not contain a right angle. To solve for the sides of an oblique triangle, it...triangle when one side and all the angles are known. Of course, only two angles Figure 6-6. — Oblique triangle. 212 need be known. The third angle in a triangle...

...most important of these interrelationships (and by most important we mean most helpful to you), are the law of sines, the law of cosines, and the law of tangents. THE LAWS As we've said, a triangle can be divided into two triangles that both contain right angles....