Measurement and Geometry
Virginia SOL 7.MG.2
Solve problems and justify relationships of similarity using proportional reasoning.
What students need to be able to do
- Identify corresponding congruent angles of similar quadrilaterals and triangles using geometric markings.
- Identify corresponding sides of similar quadrilaterals and triangles.
- Write similarity statements using symbols for two similar quadrilaterals or triangles.
- Write proportions to express relationships between lengths of corresponding sides of similar quadrilaterals and triangles.
- Recognize and justify if two quadrilaterals or triangles are similar using ratios of corresponding side lengths.
- Solve a proportion to determine a missing side length of similar quadrilaterals or triangles.
- Given angle measures in a quadrilateral or triangle, determine unknown angle measures in a similar quadrilateral or triangle.
- Apply proportional reasoning to solve problems in context including scale drawings.