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In the following figures, polygons are formed by increasing the number of sides using matchsticks as given below.
 
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Find the number of sticks required to form the next three shapes by tabulation and generalisation.
 
Answer:
 
Generalisation \(=\)
 
Number of sticks required to form \(6^{th}\) shape \(=\)
 
Number of sticks required to form \(7^{th}\) shape \(=\)
 
Number of sticks required to form \(8^{th}\) shape \(=\)