Question

find the perimeter of rectangle with length 7 cm and breadth 3 cm​

Answer 1

Step-by-step explanation:

$Perimeter \: of \: rectangle \: = \\ 2(l + b) \\ Therefore , \: 2(7 + 3) \\ = 2 \times 10 \\ = 20 \: ans$

Answer 2

Given,

The length of the rectangle is $7cm$

The breadth of the rectangle is $3cm$

Here, we have to find the perimeter of the rectangle,

Formula,

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

Here, $l=7cm,b=3cm$

Substitute above values in the formula,

Perimeter $=2(7+3)$

$=2\times10\\=20$

Therefore, the perimeter of a rectangle is $20cm$.