## ◂Math Worksheets and Study Guides Eighth Grade. Plane figures

### The resources above correspond to the standards listed below:

#### Oklahoma Academic Standards

OK.G. Geometry (G)
G.RL. Geometry: Reasoning & Logic (G.RL)
G.RL.1. Use appropriate tools and logic to evaluate mathematical arguments.
G.RL.1.1. Understand the use of undefined terms, definitions, postulates, and theorems in logical arguments/proofs.
G.2D. Geometry: Two-Dimensional Shapes (G.2D)
G.2D.1. Discover, evaluate and analyze the relationships between lines, angles, and polygons to solve real-world and mathematical problems; express proofs in a form that clearly justifies the reasoning, such as two-column proofs, paragraph proofs, flow charts, or illustrations.
G.2D.1.1. Apply the properties of parallel and perpendicular lines, including properties of angles formed by a transversal, to solve real-world and mathematical problems and determine if two lines are parallel, using algebraic reasoning and proofs.
G.2D.1.5. Use coordinate geometry to represent and analyze line segments and polygons, including determining lengths, midpoints, and slopes of line segments.
Standards