Question

What is the rule for the number of matchsticks for the pattern below if 'n' represents the number of squares ?

( 4 line segments in 1 square are considered as 4 matchsticks )

• A. 2n
• B. 2n+2
• C. 4n
• D. 4n-2

Answer 1

The correct option is C 4n

For $1^{st}$ square, we will require
4$\times$1 = 4 matchsticks.


For 2 squares, we will require
4$\times$2 = 8 matchsticks.

Hence,
for n squares, we will require
4$\times$n = 4n matchsticks.