Answer:
valid bc in a square all the sides are the same.
Step-by-step explanation:
so side 1 and side 2 both equal 3. 3×3=9
so the answer is valid
Answer:
valid
Step-by-step 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
