Question

The length of a rectangle is 2 times its breadth its perimeter is 60 CM if the breadth of rectangle is x the length of rectangle is?

Answer 1

Let Breadth of rectangle be X cm.



Length of rectangle = 2X cm.



Perimeter of rectangle = 60 cm


2 ( L + B ) = 60 cm


2 ( 2X + X ) = 60 cm



3X = 30


X = 30/3


X = 10 cm.


Breadth of rectangle = X = 10 cm.


And,

Length of rectangle = 2X = 2 × 10 = 20 cm.

Answer 2

Answer:

Concept: perimeter of the rectangle which is twice the summation  of length and breadth .

Given: The length of a rectangle is 2 times and its breadth its perimeter is 60 cm.

To find: the length and breadth of the rectangle.

Step-by-step explanation:

a rectangle is the shape whose opposite sides are equal.

so let the breadth  of the rectangle be x .( as the question says)

then the length of the rectangle is 2x.

so, $2*(l+b)=60$

or, $2*(x+2x)=60$

or, $3x=30$

or, $x=10$

so, the breadth of the rectangle is $10cm$, so the length of the rectangle is $2*10$cm which is $20cm$.

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