This task is about continuing a pattern and describing a rule for the pattern.
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The shapes above are called turbines. Each turbine has 3 blades. |
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| a) |
Draw in the next two shapes in this series.
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| b) |
Complete this table.
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Shape number (s)
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1
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2
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3
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4
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5
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i) Number of little triangles in each blade
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1
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4
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ii) Number of little triangles in the whole shape
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3
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12
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c) |
Complete the rule for each row of the table. |
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| i) |
The number of little triangles in each blade of shape number
s = ______________________________
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| ii) |
The number of little triangles in the whole of shape number
s = ______________________________
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| d) | How many triangles would there be in shape number 8? __________ |