Question

Does somene know easy if u know it

Answer 1

valid

Explanation:

because area of a square if found by A=a^2

(this can also be length times height since a square has all 4 equal sides)

3*3=9

Answer 2

valid bc in a square all the sides are the same.

Explanation:

so side 1 and side 2 both equal 3. 3×3=9

so the answer is valid