Question

Find the length of side of a square whose area is 441metresquare

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

Answer:

21m

Step-by-step explanation:

Area of square = a² = 441 m²  (Given)

A square is a regular quadrilateral, that means that it has four equal sides and four equal angles of 90°. A square has properties such as, that all the four sides are congruent and the opposite sides are parallel. In square, the diagonals also bisect each other at right angles. Often, it is also defined as a rectangle in which two adjacent sides have equal length. A square number or perfect square is said to be an integer that is the square of an integer or it is the product of some integer with itself. For example, 16 is a square number, since it can be written as 4×4.

Area of a square of side a = a²

Therefore,

a = √441 m²

a = 21m

Thus, the side of square is 21m.