US Common Core State Standard Math 1.G.A.2
Demonstrations 21 - 40 of 71

Description of Standard: Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape1.

 Lindgren's Two-Triangles-to-One Hinged Dissection Taylor's Hinged Dissection of One Parallelogram into Another Macaulay's Triangle and Trapezoid Hinged Dissection Two Hinged Dissections of a Gnomon to a Square Two Hinged Dissections of a Greek Cross to a Square Hinged Dissection of Squares Hinged Dissection of Four Hexagons into One Another Triangle into Hexagram Dissection Hinged Dissection of an Equilateral Triangle into Two Hexagons Hinged Dissection of an Equilateral Triangle into a Hexagram Areas of Parallelograms and Trapezoids Two Hinged Dissections Dissecting a Hexagon into Four Smaller Hexagons Hinged Dissections: From Equilateral Triangle to Square Equilateral Triangle to Square Dissecting an N-gram into Two Smaller N-grams Lindgren's Dissection of an Octagram into an Octagon Lindgren's Dissection of One Octagram {8/3} into Two Lindgren's Dissection of One Octagram into Two Lindgren's Dissection of One Decagram {10/3} into Two Pentagrams {5/2}

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