{"id":"SXFYLwT","uri":"https://rocdata.global/USA/standardnodes/SXFYLwT","jurisdiction":"https://rocdata.global/USA","document":"https://rocdata.global/USA/documents/DayhBeyn","parent":"https://rocdata.global/USA/standardnodes/SGjmRzf3","kind":null,"subjects":[],"education_levels":[],"concept_terms":[],"children":[],"sort_order":1.0,"notation":"CCSS.Math.Content.HSG-SRT.D.9","list_id":"","title":"","description":"(+) Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.","language":null,"concept_keywords":null,"path":null,"canonical_uri":null,"source_uri":null,"source_id":"654","notes":"","date_created":"2020-12-17T17:26:59.032719Z","date_modified":"2020-12-17T17:26:59.032745Z","extra_fields":{},"level":4}