lesson
Area of Obtuse Triangles by Decomposing
Find the area of obtuse triangles by extending a side and drawing the altitude outside the triangle.
Updated 1 month ago · 3 views
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This lesson is part of a track
Public learning track
Area of Triangles
6 lessons
Goal
Find the area of right, acute, and obtuse triangles by composing and decomposing shapes, and apply the general triangle area formula to solve problems including missing dimensions.
6 lessons
0 of 6 done
- Area of Right Triangles by Composing RectanglesUp next
- Area of Right Triangles Using the FormulaNot started yet
- Area of Acute Triangles by DecomposingNot started yet
- Area of Obtuse Triangles by DecomposingYou are here
- General Triangle Area Formula: Base × Height ÷ 2Not started yet
- Finding Missing Dimensions in TrianglesNot started yet
Learning standards covered
6.G.A.1Common Core State Standards · Math · 6th GradeFind the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles and other shapes; apply these techniques in the context of solving real-world and mathematical problems.
Open Global Standard:OGM.7.GEO.1OGM.7.GEO.2OGM.7.GEO.9
OGM.7.GEO.1OGM.7.GEO.2OGM.7.GEO.9