Help!! plz algebra 1 help asap!?

Question

OK so yea second week of skool tons of homework..anywayzz..heres the question

in the square, the variable "a" represents a positive whole number. find the value of the variable such that the area and perimeter are both the same..

(theres is a picture of a square with and an "a" on the left side)plz plz plz help.

Answer 1

its 4

because 4x4 is 16 and 4+4+4+4 is 16