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Nezavi [6.7K]
3 years ago
6

Please answer it now in two minutes

Mathematics
1 answer:
kodGreya [7K]3 years ago
4 0

Answer:

s = 19.0

Step-by-step explanation:

To find s, use the Pythagorean Theorem.

a² + b² = c²

9² + b² = 21²

81 + b² = 441

b² = 360

b = √360

b = 18.97366596 ⇒ 19.0 (rounded to the nearest tenth)

So, s = 19.0.

Hope that helps.

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