Finding Missing Angles Using the Exterior Angle Theorem

111.41(b)(6)(A)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Grade

verify theorems about angles formed by the intersection of lines and line segments, including vertical angles, and angles formed by parallel lines cut by a transversal and prove equidistance between the endpoints of a segment and points on its perpendicular bisector and apply these relationships to solve problems;

111.41(b)(1)(B)Texas Essential Knowledge and Skills (TEKS) · Math · 10th Grade

use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution;