Question

Breath of a rectangle of its perimeter80cm and lenth4cm​

Answer 1

Answer:36 cm

Step-by-step explanation:P =2( L + W)

80 = 2( 4+ x)

80 = 8 + 2x

72 = 2x

x = 36 cm

Answer 2

Answer:

l=4 cm

P=80 cm

As P=2*(l+b)

b=P/2-b

=80/2-4

=40-4=36 cm