The Law of Sines (or Sine Rule) is very useful for solving triangles: a sin A = b sin B = c sin C. It works for any triangle:

正弦定理（The Law of Sines）是三角学中的一个基本定理，它指出“在任意一个平面三角形中，各边和它所对角的正弦值的比相等且等于外接圆的直径”，即a/sinA = b/sinB =c/sinC = 2r=D（r …

The law of sines is one of two trigonometric equations commonly applied to find lengths and angles in scalene triangles, with the other being the law of cosines. The law of sines can be …

Law of sines defines the ratio of sides of a triangle and their respective sine angles are equivalent to each other. The other names of the law of sines are sine law, sine rule and sine formula. …

Find out how the Law of Sines can be used to calculate unknown sides and angles of any oblique triangle. Discussion of different cases are included.

What is Law of Sines? The law of sines relates the ratios of side lengths of triangles to their respective opposite angles. This ratio remains equal for all three sides and opposite angles. …

计算器不会给你这个答案， 但 sin (112.9°) 也是等于 0.9215…… 那么，我们怎样得到 112.9°这个答案？ 两个都是对的！ 每个三角形都有 39°的角及 41 和 28 长的边。 所以，一定要记得去检 …

2022年11月17日 · The Law of Sines states that the sides of a triangle are proportional to the sines of their opposite angles.

正弦定理 Sine Law 對於平面上 4ABC 的三個角 A、B、C，若它們的對邊 分別為 a、b、c，4ABC 的外接圓半徑為 R 有 a sinA = b sinB = c sinC = 2R 證證證明明明 I. 銳角三角形 1. 命三角形 …

The law of sines (also known as the sine rule) states that the ratio of side length to the sine of the opposite angle is the same for all sides in a triangle.