Question

if a rectengular box breadth is 20 cm and its perimeter is 100 cm . then find its length

Answer 1

hello Frnd

Given as

Perimeter = 100 cm
Breadth = 20 cm

As we know

Perimeter of rectangle = 2( L + B)

100 = 2 ( L + 20 )

50 = L + 20

L = 30


Hence the length = 30 cm



hope it helps
#jerri

Answer 2

2(l+b) = 100
L + B = 50
L = 50- b
L = 50 -20
L = 30 cm
Hope this helps