Question

The perimeter of rectanlge is 30cm .If its breadth is 3cm , then its length will be


a) 4.5cm
b) 5cm
c) 5.5cm
d) 6cm

Answer 1

Answer:

Length is 12 cm

Step-by-step explanation:

Perimeter of rectangle = 2( l + b) where l is length and b is breadth

30 = 2(l + 3)

30/2 = l + 3

15 = l + 3

l = 15 - 3

l = 12 cm

Answer 2

Perimeter = 30 cm
Length: x
Breadth: 3 cm
2(l+b)
2 ( x+3 ) = 30 cm
X+3 = 30^2
X= 15-3
X= 12 cm
None of them are right!
L= 12 is the right answer.