TEKS: Chapter 111. Mathematics See All Teacher Resources

111.34.b.11

(11) Similarity and the geometry of shape. The student applies the concepts of similarity to justify properties of figures and solve problems. The student is expected to:

• (A) use and extend similarity properties and transformations to explore and justify conjectures about geometric figures;

• (B) use ratios to solve problems involving similar figures;

• (C) develop, apply, and justify triangle similarity relationships, such as right triangle ratios, trigonometric ratios, and Pythagorean triples using a variety of methods; and

• (D) describe the effect on perimeter, area, and volume when one or more dimensions of a figure are changed and apply this idea in solving problems.