Question

You need 4 matchsticks to make 1 square, 2 × 4 matchsticks to make 2 squares.So what is the total number of sticks to make n squares?​

Answer 1

sequence of mathchsticks need to make squares

=4, 8

Lets take the term as X then

Xn=X1+(n-1)d

=4+(n-1)4

=4+4n-4(+4 and -4 cancelled here)

=4n

Xn=4n

1. here X1 means first term
2. d means common difference

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