Respuesta :
Perimeter = 4a= 80
a=80/4= 20 cm.
Area = 20 x 20 = 400 sq. cm.
a=80/4= 20 cm.
Area = 20 x 20 = 400 sq. cm.
Answer:
the answer is 400
Step-by-step explanation:
80/4=20
20x20 = 400
hoped this helps:P