Question

What is the length of AB?

Answer 1

Find the diagonal length:

a² + b² = c²

c² = 4² + 6²

c² = 52

c = √52

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Find the length AB:

a² + b² = c²

c² = (√52)² + 1²

c² = 52 + 1

c² = 53

c = √53

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Answer: Length AB = √53