Question

rectangle is 80 cm long and 20 cm broad find side of square whose area is equal to the area of this rectangle

Answer 1

Hi there!

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Given :

Length of rectangle = 80 cm.

Breadth of rectangle = 20 cm.

Now,

Area of rectangle = length × breadth

⇒ ( 80 × 20 ) cm²

⇒ 1600 cm²


Also,

Area of square = 1600 cm²

⇒ ( side )² = 1600 cm²

⇒ side = √1600 cm²

⇒ side = 40 cm.


Hence, the side of the required square is 40 cm.

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Thanks for the question!

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Answer 2

Length of rectangle = 80cm
Breadth of rectangle =20cm
Area of rectangle = length×breadth
=80×20=1600cm2
A/Q
Area of square =side2=area of rectangle =1600cm2
Let side of square =a
=a2=1600
$a = \sqrt{1600}$
=a=40
Side of square =40cm