Yes that is one way. You can also prove that a shape is a square by looking at the angles and each side are congruent to each other
No one is going to do all this for 5 points...
Use pythagorean therom, so A^2 would be 12 since it’s the same lengths the square sides, and C^2 is 20. X= 16
It will be negative because he has 422 but purchased 484 which is more than he has . so he is a negativge nuber because owns money
