The AP English Language and Composition Exam is approximately three hours and 15 minutes long and has two parts — multiple choice and free response. The multiple choice section is worth 45% and the free response section is worth 55% of the final exam grade. Section I: Multiple Choice — 55 questions; 1 hour.
The law of sines works for any triangle, unlike Sohcahtoa which works for the right-angled ones only. Sides and angles are called the six measures of a triangle and to solve the triangle means to find all of these six measures. If we are given only some of them, we can use The Law of Sines to find the rest of them. Precisely, if we are given.