Correct answers:
| 1. |
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straight line
curved line
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| 2. |
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straight line
curved line
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| 3. |
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straight line
curved line
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| 4. |
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straight line
curved line
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| 5. |
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straight line
curved line
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| 6. |
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straight line
curved line
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| 7. |
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straight line
curved line
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| 8. |
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straight line
curved line
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