Question

The perimeter of a rectangle is 42 cm and its lenght is double its breadth. Find the length and breadth of the rectangle​

Answer 1

Answer:

let its breadth= x

let its length = 2x

perimeter= 2 (L+b)

given perimeter= 42 cm

therefore,

2 ( x + 2x ) = 42 cm

2 (3x) = 42 cm

6x = 42

x=42/6

x = 7

now,

breadth = x = 7cm

length = 2x = 2 × 7 = 14 cm

Step-by-step explanation:

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Answer 2

Answer:

length is 7 CM and breath is 14 cm

Step-by-step explanation:

spouse length of rectangle is x

then breath is 2x

The parameter of rectangle is = 2 (L + b)

2( x + 2x) = 42cm

6x = 42cm

X = 7cm

so The length of rectangle is= 7 cm

breath is = 7 X 2 = 14cm