Question

Find the length or breadth of the rectangles from the following measurements. Which of these are squares? A-400sq.cm,b-20cm​

Answer 1

Answer:

The length of this figure is given , let us find its breadth .

Length of this rectangle = 20 cm

Breadth of this rectangle = b

Area = 400 sq.cm

To find the breadth =

= l × b = 400 cm

= 20 × b = 400 cm

= b = 400 ÷ 2

= breadth = 20 cm

Therefore , this figure is a square with it's all sides having an equal measure of 20 cm .

Hope you find my answer useful!!

Answer 2

Answer:

(given)

Area of rectangle = 400 cm²

Breadth of the rectangle = 20 cm

So Length of the rectangle

$length= > ( \frac{area}{breadth} )unit$

$l \: = ( \frac{400}{20} )cm$

$l = 20 cm$

check:-

Area = length × breadth

A = (20 × 20) unit²

A = 400 cm²