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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Answer 2

Lenthg=80cm

Breadth=20cm

Area of rectangle= lxb

=80x20

=1600 cm^2

Let tge side of square be x cm.

Area of rectangle =area of square.. (GIVEN)

1600= side x side

1600= x^2

x = 40cm

Therefore, side of square is 40 cm.

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