Question

The length of a rectangle is twice its breadth. If its perimeter is 60 cm, find the length and the breadth of the rectangle​

Answer 1

Answer:

Length= 20 cm

Breadth = 10 cm

Step-by-step explanation:

Given,

Perimeter = 60 cm

Let the breadth be x

We know,

2(l+b)= perimeter of a rectangle

So,

According to the question

$2(2x + x) = 60$

$= > 4x + 2x = 60$

$= > 6x = 60$

$= > x = \frac{60}{6}$

$= > x = 10$

Now,

Therefore,

Breadth = x

= 10 cm

and length = 2x

= 2×10

= 20 cm

• Length=20cm
• Breadth= 10 cm

Hope it helps you!!

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Answer 2

Answer:

• Length is 20 cm
• Breadth is 10 cm

Step-by-step explanation:

According to the Question

It is given that,

• Length of rectangle is twice as its breadth
• Perimeter of Rectangle = 60cm

We have to calculate the length and

breadth of the rectangle.

Let the breadth be x cm.

then,

Length be 2x cm.

Calculating the length and breadth-

• Perimeter of Rectangle = 2(Length+breadth)

By putting the value we get-

→60 = 2(2x+x)

→60 = 2(3x)

→60 = 6x

→x = 60/6

→ x = 10 cm

Since, breadth is 10 cm.

Therefore, Length = 2x = 2×10 = 20 cm.

• Hence, the length and breadth of rectangle is 20 cm & 10 cm respectively.