Question

the perimeter of the rectangular field is 14m is the length of the field is 4m .find its area​

Answer 1

Answer:

2(l+b) =14m

2(4+b) = 14m

8+b =14m

b= 14-8 = 6 m

Step-by-step explanation:

Hope it helps you

Answer 2

Answer :-

• The area of the rectangular field is 12m².

Step-by-step explanation:

To Find :-

• The area of rectangle

Solution:

Given that,

• The perimeter of rectangular field = 14m
• The length of the field = 4m

∴ The breadth of the rectangular field :-

As we know that,

Perimeter of rectangle = 2(l+b),

Where,

• l = Length
• b = Breadth

⇒ 2 ( length + breadth ) = 14

⇒ 4 + breadth = 14/2

⇒ 4 + breadth = 7

⇒ breadth = 7 - 4

⇒ Breadth = 3m

Hence, The breadth of rectangular field is 3m.

According the question,

Now, The area of the rectangular field :-

As we know that,

Area of rectangle = l × b,

Where,

• l = Length
• b = Breadth

⇒ Area = length × breadth

⇒ Area = 4m × 3m

⇒ Area = ( 4 × 3 ) m²

⇒ Area = 12m²

Therefore, The area of the field is 12m².