Sum of Angles in a Polygon

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Explore the relationship between the number of sides of a polygon and the sum of its interior angles.

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Vertex Angles in a Regular Polygon

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Investigate how the vertex angle of a regular polygon relates to its number of sides.

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Tessellation Restrictions

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Determine which polygons can tessellate.

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Same Area: Triangle & Square

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Construct a triangle that always has the same area as a square.

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Rhombus and Circular Pool

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Find a way to build the largest circular pool in a rhombus-shaped backyard.

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Triangle or Square

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Dissect a triangle into four parts so that it can be rearranged into a square.

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Increasing Area

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If the area of a rectangle increases, how much does its length and width increase?

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Folding Squares

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Use the perimeter of a rectangle to determine the area of a square.

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Biggie Size It (Square)

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If the area of a square increases by a certain amount, how long is an edge of the original square?

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Land Dispute

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Help settle a dispute over land between Squaresville and Centerville.

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