Respuesta :

#2 is 22cm

#3 is 20cm

#4 is 2cm

Patrick's figure is a square of side length 5 cm, and the perimeter is 
4(5 cm) = 20 cm.

Jillian's figure has one 8 cm side (at the top), two 4 cm sides (at the bottom), one 3 cm side, one 2 cm side and one 1 cm side.  Adding these together, we find that the perimeter is 22 cm.

#4:  Jillian's figure's perimeter is 2 cm longer than Patrick's figure's perimeter.