Question

The perimeter of a rectangle is 40 cm. The length of the rectangle is more than
double its breadth by 2. Find length and breadth.​​

Answer 1

Answer:

l=14cm, b =6cm

Step-by-step explanation:

Perimeter = 40cm

length (l) = 2(breadth) +2

Perimeter = 2 ( l+b )

40 = 2[2b+2+b]

40/2 = 3b + 2

20 - 2 = 3b

b = 18/3 ⇒ b=6cm

l= 2b +2 = 2(6) +2 = 12 +2 = 14cm

Answer 2

Answer:

perimeter of rectangle is 40 cm

let the breadth be xerox

and length is double of breadth

2×x is 2x

perimeter of rectang2×(l+b)

2×(2x+x)

2×(3x)

6x

x=6

l=2×x=2×6=12

b=x=6