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Published byVanessa Flynn Modified over 3 years ago

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Lets count the Faces on a cube ©

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Use the letter F for the number of Faces ©

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How many Faces? ©

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F = ©

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F = 6 ©

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Fill in the table ©

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©

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How many Corners? ©

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C = ©

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C = 8 ©

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©

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©

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How many Edges? ©

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E = ©

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E = 12 ©

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©

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©

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Equation F + C – E = ©

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Equation 6 + 8 – 12 = ©

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Equation 6 + 8 – 12 = 2 ©

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©

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A Pyramid ©

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F = ©

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F = 4 ©

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©

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C = ©

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C = 4 ©

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©

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E = ©

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E = 6 ©

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©

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Equation F + C – E = ©

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Equation 4 + 4 – 6 = ©

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Equation 4 + 4 – 6 = 2 ©

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©

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©

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For homework see whether you can do the same calculation for ©

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an icosahedron ©

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and a football ©

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How many Corners? ©

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4 on top ©

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4 on the bottom ©

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1 ©

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1 2 ©

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1 2 3 ©

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1 2 4 3 ©

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1 2 4 3 5 ©

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1 2 4 3 5 6 ©

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