Question

No. of figures
1
2
3
4
n
No. of sides
2 x 1 + 2
2 x 2 + 2
2 x 3 + 2
2 x 4 + 2


Observe the following pattern. Write formula for n

Answer 1

the number of sides increases by 2
2n+2

Answer 2

i think the answer is 5
2×5+2