Hi! So because all the sides of the square are the same side, you multiple two of the side lengths together, so the area of the painting is 18 x 18 = 324 :) Good luck and do well in school!!!!!!!!
A square is a shape with equal sides so if the length is 18 in, the width would also be 18 in. And to find the area of a square you multiply LxW So, you multiply 18x18= 324 in The area of the painting would be 324 inches.
