some of the geometry concepts that were clear to me this week include basic shapes (such as triangles, squares, and circles), angles, and perimeter. name more complex geometry

Sure, here are some more complex geometry concepts:

1. Polygons: These are 2D shapes with straight sides. Examples include pentagons, hexagons, and octagons.

2. 3D Shapes: These include cubes, spheres, cylinders, cones, and pyramids.

3. Transformations: This includes translations (slides), rotations (turns), and reflections (flips).

4. Congruence and Similarity: These concepts deal with the size and shape of figures and how they can be similar (same shape, different size) or congruent (same shape and size).

5. Trigonometry: This is the study of the relationships between the angles and sides of triangles.

6. Coordinate Geometry: This involves graphing and solving equations on a coordinate plane.

7. Geometric Proofs: These are logical arguments that use axioms, theorems, and definitions to prove that a geometric statement is true.

8. Solid Geometry: This is the study of 3D shapes and includes concepts like volume and surface area.

9. Euclidean Geometry: This is the study of plane and solid geometry based on definitions, undefined terms (point, line and plane) and the assumptions of the mathematician Euclid.

10. Non-Euclidean Geometry: This is any type of geometry that is not Euclidean, such as spherical and hyperbolic geometry.

These are just a few examples of more complex geometry concepts.