Can anyone pls help me in this pls

Again a square means the side lengths are the same length. The hypotenuse is given to be 3 so we can easily solve for the side length using the pyth. theorem.
Let x = side length
2x² = 3²
2x² = 9
x² = 4.5
x = √4.5 = 2.1 m approx.
answer: 2.1 m approx.
Answer:
2.1 (Approx)
Step-by-step explanation:
Pythagorean theorem
a^2+b^2=c^2
substitute for a and b and square the 3 to see which one is the closest