Question

the perimeter of a rectangle is 36 cm and its breadth is 8.4 cm find the length and area of a rectangle​

Answer 1

Step-by-step explanation:

Breadth = 8.4cm

Perimeter of rectangle =36cm

2×l+b = 36cm

2×l+8.4= 36

2×l = 36-8.4=27.6

l = 27.6/2 = 13.8 cm

Now,

Area = l×b = 13.8×8.4 = 115.92sq cm

Answer 2

Here the perimeter of the rectangle is given to be 36 cm

Also, the breadth is given as 8.4 cm

We have to find the length and area of the rectangle

Perimeter = 2 ( length + breadth )

          36 = 2 ( length + 8.4 )

          18 = length + 8.4

     length = 9.6 cm

Area = length × breadth

       = 9.6 × 8.4

       = 80.64 cm²

The length and area of the rectangle will be 9.6 cm and 80.64 cm² respectively.