Respuesta :

Answer:

70.6 cm

Step-by-step explanation:

The length is 30 cm so you multiply by 2 which is 60 and the height is 53 mm so you multiply that by 2 and get 106 mm

to convert millimeters to centimeters you just divide the length value by 10 :)

so 10.6+60=70.6 cm