Respuesta :
Answer:
40 in
Step-by-step explanation:
It must be 40 inches because to get an area of 100 in 2 each side has to be 10 in therefor, if you multiply 10 by 4, you get 40

Answer:
40 in
Step-by-step explanation:
It must be 40 inches because to get an area of 100 in 2 each side has to be 10 in therefor, if you multiply 10 by 4, you get 40