The area of a square screen is 100 cm². Find the side length
of the screen.

10 cm

Step-by-step explanation:

From the question,

Area of a square = (Length)²

A = L²............................ Equation 1

Where A = Area of the screen, L = Length of the Screen

make L the subject of the equation

L = .................... Equation 2

Given: A = 100 cm²

Substitute into equation 2

L =

L = 10 cm

Hence the length of the screen is 10 cm