Question

perimeter of rectangle with dimensions of 40 cm and 30 cm is​

Answer 1

$\sf\green{Given:} Length\: of\: rectangle =40cm \\ \\ \sf Breadth \: of \: rectangle =30 cm$

$\sf\red{To\: Find:} Perimeter\: of\: rectangle$

$\sf\blue{Solution:} Perimeter\: of\: rectangle = 2(l+b) \\ \\ \implies 2(40+30) \\ \\ \implies 2(70) \\ \\ = 140cm$

Answer 2

Solution

Given,

• the length of the rectangle is 40 cm .
• the breadth of the rectangle is 30 cm .

To find ,

• we have to find here the perimeter of the rectangle .

We know that to find the perimeter of a rectangle we have to use the formula ;

=> 2(length + breadth ).

now putting the value in the formula we get ;

$= > 2(40 + 30) \\ = > 2 \times 70 \\ = > 140cm$

The perimeter of the rectangle is 140 CM .

Diagram in attachment !