Question

The length of a rectangle exceeds its breadth by 4m. Find the dimensions of the rectangle if its
perimeter is 84m.​

Answer 1

Answer:

breadth = 19m and length =  23m

Step-by-step explanation:

Let breadth be x. So length is (x + 4)

Perimeter = 2 (length + breadth)

84 = 2 [x + (x + 4)]

84 = 2[2x + 4]

42 = 2x + 4

2x = 38

x = 19

x + 4 = 23

Answer 2

Answer:

B = 19 cm and L = 23 cm.

Step-by-step explanation:

Let the breadth of the rectangle = x cm

Then, length = (x+4) cm

Perimeter = 2( l + b )

84 = 2( 2x + 4 )

42 = 2x + 4

38 = 2x

x = 19

∴ Breadth = 19 cm

Length = 23 cm