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Published byBertha Ellis Modified over 5 years ago

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2D and 3D Shapes

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What is a shape? A shape tells how an object looks on the outside.

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What is a 2-dimensional shape? o A 2-D shape is any shape that has length and width. o 2-D shapes are FLAT. o 2-D shapes can be drawn on paper.

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What is a 3-dimensional shape? o A 3-D shape is any shape that has length, width, and height. o 3-D shapes are SOLID.

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Face The part of a shape that is flat or curved.

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Side The line or curve on the edge of a shape that joins its corners.

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Angle The amount of turning of two lines meeting at a common point. 90◦

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Square Rectangle 2-D shape with 4 equal sides. 2-D shape with 2 shorter sides and 2 longer sides.

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Circle Triangle 2-D shape that is round. 2-D shape with 3 straight sides and 3 angles.

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Hexagon A 2-D shape with 6 sides and 6 angles.

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Cube Cone A 3-D shape with 6 square faces that are all the same size. A 3-D shape with a round base and pointed vertex.

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Cylinder Sphere A 3-D shape with circular ends that are equal. A 3-D shape that is perfectly round and has only 1 round face.

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Can you sort the shapes? 2-D 3-D

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This PowerPoint was created by J. Straniti. ©

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