Trigonometry:

Pythagorean Theorem

Chapter Pythagorean Theorem covers right triangles and solving for unknowns using the Pythagorean Theorem.

Given a problem APPLIES the Pythagorean Theorem to solve for the unknown values of a right triangle.

Trigonometry is the branch of mathematics which is the study of angles and the relationship among angles and the lines that form them. Trigonometry is used within Classical Physics & Electrical Science to analyze several physical phenomena. Engineers and operators use this branch of mathematics to solve problems encountered in the classroom and on the job. The most significant application of trigonometry is the solution of problems including triangles, particularly right triangles.

Trigonometry is one of the most meaningful branches of mathematics.  That is used to indirectly measure distances that are hard to measure directly. For instance, the height of a flagpole or the distance across a river can be measured using trigonometry.

As display in Figure below, a triangle is a plane figure formed using straight line segments (AB, BC, CA) to link three points (A, B, C) that are not in a straight line. The total sum of the measures of the three interior angles (a', b', c') is 180E, and the sum of the lengths of any two sides is always greater than or equal to the third.