Why Lesson Planet?
In this exploring similar polygons instructional activity, 10th graders solve 9 various types of problems related to determining whether each polygon is similar or not. First, they write 3 equal ratios to show corresponding sides are proportional to each triangle illustrated. Then, students write four equal ratios to show corresponding sides are proportional in each quadrilateral shown. They also determine which two angles of the quadrilateral is the sum of the measures.