Question

A.
Area of a square: 81 in?

Answer 1

Assuming the question is wanting to know the area of a square with sides of 81 inches each, the answer would be

6561 inches squared

Explanation:

if each side of the square is 81 inches, you multiply

81 x 81 = 6561

Answer 2

Area of square=81 cm^2. ✳But area=side^2. ✳81=s^2