Question

please answer this question.

Answer 1

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Answer 2

Answer:

Step-by-step explanation:

Distance formula,

AB² = (x2 - x1)² + (y2 - y1)²

x1 = a , x2 = -b , y1 = b, y2 = a

AB² = (-b - a)² + (a - b)²

= b² + 2ab + a² + a² - 2ab + b²

= 2b² + 2a²

AB² = 2 (b² + a²)

AB = √2 (b² + a²) square units.