Respuesta :

Medunno13

Answer:

10 cm

Step-by-step explanation:

See attached image

Ver imagen Medunno13
BKWong2007

Answer:

length = 10 cm

Step-by-step explanation:

Fyi, breadth is a synonym to width.

Since P=30, we must find the length.
l = length
w = width
P=w+w+l+l

30 = 5+5+l+l
30 = 10+2l
-2l = -20
l = 10

Hence, the length is 10 cm.

good job