1.

Area of rectangle of breath is 70 cm is 340cm2 .find perimeter of rectangle

Answer»

Given :

  • Area of rectangle = 340 cm²

  • LENGTH of the rectangle = 70 cm.

To find :

  • Perimeter of the rectangle = ?

Step-by-step explanation:

Area of rectangle = 340 cm² [Given]

Breadth of rectangle = 70 cm. [Given]

Now, We have to find Length of rectangle,

Let, length of the rectangle be l.

We KNOW that,

Area of rectangle = length × breadth

Substituting the VALUES in the above formula, we get,

➮ 340 = l × 70

➮ 340 = 70l

Or, 70l = 340

l = 340/70

l = 48.58.

Therefore, Length of the rectangle = 48.58 cm (APPROX)

Now,

Perimeter of rectangle = 2 ( Length + Breadth )

Substituting the values in the above formula, we get,

= 2 ( 48.58 + 70 )

= 2 ( 118.58)

= 237.16.

Thus, The Perimeter of the rectangle = 237.16 cm.

(approx)


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