| Construct the linkage to draw the cardioid as thus: |
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| Construct the linkage to draw the cardioid as thus: |
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| Construct the linkage to draw the cardioid as thus: |
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| Construct the linkage to draw the nephroid as thus: |
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| Construct the linkage to draw the deltoid as thus: |
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| Construct the Sylvester-Kempe linkage: |
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