Question

the area of ratangle is 800sqcm if its length is 40cm then its is how much​

Answer 1

Step-by-step explanation:

Length of wire in shape of rectangle =40 cm

Breadth of wire shape of rectangle =22 cm

let side of square made by wire be a 

then , 

perimeter of rectangle = perimeter of square.

2(40+22)=4a

            124=4a

               a=31cm

Area of rectangle =40×22

                              =880cm2

Area of square =31×31

                          =961cm2

Answer 2

$\bf\huge{Given}$

• The area of rectangle is 800 sq cm

• The length of Rectangle is 40cm

$\bf\huge{To-Find}$

• The breadth of Rectangle

We know that :

$\bf{Area \: of \: Rectangle = Length × Breadth }$

$\bf \implies{800 \: sq \: cm = 40 \: cm × Breadth }$

$\bf \implies{Breadth = \frac{800}{40} }$

$\bf \implies{Breadth = 20 \: cm}$

Therefore:-

• The breath of Rectangle is 20 cm