8.6: Sine, Cosine, Tangent Difficulty Level: At Grade Created by: CK-12 % Progress MEMORY METER This indicates how strong in your memory this concept is Practice Progress % % Practice Now MEMORY METER This indicates how strong in your memory this concept is Share Add to Library Turn In Read Practice Resources Details Loading... Notes/Highlights Having trouble? Report an issue. Color Highlighted Text Notes Show More Vocabulary Language: English ▼ English Acute Angle An acute angle is an angle with a measure of less than 90 degrees. Adjacent Angles Two angles are adjacent if they share a side and vertex. The word 'adjacent' means 'beside' or 'next-to'. Hypotenuse The hypotenuse of a right triangle is the longest side of the right triangle. It is across from the right angle. Legs of a Right Triangle The legs of a right triangle are the two shorter sides of the right triangle. Legs are adjacent to the right angle. opposite The opposite of a number is . A number and its opposite always sum to zero. Pythagorean Theorem The Pythagorean Theorem is a mathematical relationship between the sides of a right triangle, given by , where and are legs of the triangle and is the hypotenuse of the triangle. Radical The , or square root, sign. sine The sine of an angle in a right triangle is a value found by dividing the length of the side opposite the given angle by the length of the hypotenuse. Trigonometric Ratios Ratios that help us to understand the relationships between sides and angles of right triangles. Image Attributions Show Hide Details Description This concept teaches students to find the sine, cosine, and tangent of right triangles. Learning Objectives None Related Materials Sine and Cosine Ratios Sine, Cosine, Tangent Difficulty Level: At Grade Authors: Bill Zahner Lori Jordan Tags: cosine MAT.GEO.652.L.2 sine (2 more) tangent trigonometric ratios Subjects: mathematics Geometry Concept Nodes: MAT.GEO.652 (Sine, Cosine, Tangent) Grades: 9 , 10 Date Created: Jul 17, 2012 Last Modified: Feb 08, 2017 Vocabulary None Save or share your relevant files like activites, homework and worksheet.To add resources, you must be the owner of the Modality. Click Customize to make your own copy.