Question

if the length of a rectangle is 14 cm and its perimeter is three times of its length find its area​

Answer 1

Length of Rectangle is 14 cm.. given

Let breadth be 'b' and Length be. 'l'

Perimeter=2(l+b)

3l= 2(14+b)

3×14=28+2b

2b=42-28

2b=14

b=7

Now area of Rectangle=l×b

14×7

98..

Here it is 98 cm square in ans

Answer 2

Answer:

Area of the Rectangle is 98 cm^2.

Step-by-step explanation:

Length of the Rectangle = 14 cm

Given that,

Perimeter of the Rectangle = 3×It’s Length

= 3×14

= 42 cm.

Perimeter of the Rectangle = 2(l+b) = 42

= 2(14+b) = 42

= 14+b = 42

2

= 14+b = 21

= b = 21-14

=b = 7

Therefore, the breadth of the Rectangle (b) is 7 cm.

Area of the Rectangle = Length×Breadth

= l×b

= 14×7

= 98 cm^2.

Therefore, Area of the Rectangle is 98cm^2.

( Please observe that ^ means square).

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