what shape is this? what is special about this shape? how many vertices? how many faces? how many...

What shape is this?What is special about this shape?

How many vertices?How many faces?How many sides?

What shapes are these?

Identify the Faces, Edges, Vertices.

What shape is this?What is special about this shape?

How many vertices?How many faces?How many sides?

rectangle

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Rectangular Prism

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rhombus

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hexagon

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trapezoid

A trapezoid is a quadrilateral with two sides parallel.

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diamond

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circle

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sphere

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square pyramid

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square

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cube

What shape is this?What is special about this shape?

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triangle

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Triangle pyramid

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cylinder

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pentagon

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hexagon

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How many vertices?How many faces?How many sides?Parallelogram

Creating Parallelograms using a rectangle and a rhombus.

These are Parallelograms.

A parallelogram is a quadrilateral with opposite sides parallel (and therefore opposite angles equal). A quadrilateral with equal sides is called a rhombus, and a parallelogram whose angles are all right angles is called a rectangle. And, since a square is a degenerate case of a rectangle, both squares and rectangles are special types of parallelograms.

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right angle triangle

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These are quadrilaterals.

A quadrilateral, sometimes also known as a tetragon or quadrangle (Johnson 1929, p. 61) is a four-sided polygon. If not explicitly stated, all four polygon vertices are generally taken to lie in a plane. (If the points do not lie in a plane, the quadrilateral is called a skew quadrilateral.) There are three topological types of quadrilaterals (Wenninger 1983, p. 50): convex quadrilaterals (left figure), concave quadrilaterals (middle figure), and crossed quadrilaterals (or butterflies, or bow-ties; right figure).

A quadrilateral with two sides parallel is called a trapezoid, whereas a quadrilateral with opposite pairs of sides parallel is called a parallelogram.