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Areas of Parallelograms & Triangles
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Geometry. Areas of Parallelograms and Triangles. A parallelogram is a sheared rectangle. A right triangle is half of a rectangle. Obtuse and acute triangles are sheared right triangles. Triangles have 3 altitudes so have 3 ways to find their area. IXL S.3 Code JTR. Glencoe 10.1
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