What is the area of a square computer screen with 21-in sides?

Solution:

Given a square with screen side = 21 in

We know that area of a square with a side as ‘a’ is given as a² units

Here, a = 21in

Area = 21² = 441 sq in

Therefore, the area of the square is 441 sq in

What is the area of a square computer screen with 21-in sides?

Summary:

The area of a square computer screen with 21-in sides is 441 sq in.