Geometry Gurus! (IXL) Posted on May 9, 2017 by harmonymcmillan Geometry Gurus, here are your IXL assignments: Lesson 1: Is it a polygon? Lesson 2: Regular and irregular polygons Lesson 3: Identify congruent shapes Lesson 4: Identify and classify polygons Lesson 5: Acute, obtuse and right triangles Lesson 6: Scalene, isosceles and equilateral triangles Lesson 7: Types of triangles