{ "name": "Special Triangles", "order": 18, "challenges": [ { "id": "59a5801209a6acac5983b508", "title": "Special Right Triangles and Ratios", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a354", "title": "45-45-90 Right Triangles", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a355", "title": "30-60-90 Right Triangles", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983a356", "title": "Quadrilaterals and Polygons", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] } ] }