If u are doing area do u add or multiply and what do you do for perimeter too 99 points

For perimeter, you add all the sides together.

For Area, you mutiply length by width.

Step-by-step explanation:

A square has 8 cms for all 4 sides.

For perimeter, you would just add 8, 4 times. Which equals 32.

For area, you would mutiply 8 by 8. Which equals 64.

$12. that is my answer.