Answer:
The 3rd Answer: The empty square has a side length of 10 and an area of 100 square units.
Step-by-step explanation:
The pythagorean theorem states that for any right triangle ith legs a and b and a hypotenuse of c that: [tex]a^{2} +b^{2}=c^{2}[/tex] therefore:
In the given right triangle if we apply this and see that [tex]6^{2}+8^{2}=10^{2}\\[/tex] meaning that the missing side must be 10. Because of this and the fact that the area of a square is [tex]A=s^{2}[/tex] then A=100 and it is obvious that: The empty square has a side length of 10 and an area of 100 square units.