Question

area of a rectangle 340 sq cm and its length is 17cm.find the perimeter and the breadth

Answer 1

Answer:

The breadth and the perimeter of the rectangle will be 20 cm and 74 cm respectively

Step-by-step explanation:

Here the area of the rectangle is given to be 340 sq. cm

Also, the length is given to be 17 cm

We will first find out the breadth of the rectangle

area of rectangle = length × breadth

                    340 = 17 × breadth

           breadth = 340/17

                         = 20 cm

Now, we will find out the perimeter of the rectangle

perimeter = 2 ( length + breadth )

                =  2 ( 17 + 20 )

                = 2 × 37

                = 74 cm

Answer 2

Answer:

∴ The breadth of a rectangle is $20$ cm.

  The perimeter of a rectangle is $74$ cm.

Step-by-step explanation:

• In context with question asked,
• We have to find the perimeter and the breadth.
• It is given that, the area of a rectangle = $340$ sq.cm

          The length of a rectangle = $17$ cm

• Rectangle has four sides and four right angles. It has two pairs of opposite sides.
• The formula for area of rectangle is given by,

      Area of rectangle = $l\times b$

                       ∴ $340=17\times b$

                          ∴ $b=\frac{340}{17}$

                          ∴ $b=20$ cm

• Now, the perimeter of a rectangle is the sum of all sides of a rectangle.

            Perimeter of a rectangle = $2(l+b)$

                                                = $2(17+20)$

                                                = $2\times 37$

                                                = $74$ cm  

• ∴ The breadth of a rectangle is $20$ cm.

        The perimeter of a rectangle is $74$ cm.