Question

find the length of the side of a square whose area is 441sq.m.

Answer 1

Area of a square of side a = a²

given that a² = 441 m²

⇒a = √441 m²

⇒a = 21m

Side of square is 21m.

Answer 2

Let's assume the side as x meters

According to Question,

Area of Square = 441 m²

Side × Side = 441 m²

⇒ (x × x) = 441

⇒ x² = 441

⇒ x = √(441)

⇒ x = 21

As, the side is x meters

Hence, the side is 21 meters

#Some things to know -

A square is a polygon or a 2 dimensional figure with 4 equal sides.

Area of Square = (Side)²

Perimeter of Square = 4 × Side

[As, square has 4 equal sides]

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