Question

Please help, this is about the Pythagorean Theorem!

Answer 1

12.2

Explanation:

Place point A at (-4, -1).

(AK)² + (AN)² = (KN)²

a² + b² = c²

7² + 10² = c²

149 = c²

c = √149

c ≈12.2

KN = 12.2