Sine, Cosine and Tangent to find side length of a right triangle Solving for Sides; SOHCAHTOA: Find the sides of a right triangle. Table of contents. top; Video ; Example ; ... Problem 1. Use sine, cosine or tangent to find the value of side x in the triangle below. Show Answer. ... Worksheet on this page's topic. Menu; Table of Content; From Mathwarehouse. Algebra ; Algebra Solver; Geometry ;