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Ivenika [448]
3 years ago
11

Need help with this question please!!

Mathematics
1 answer:
Luba_88 [7]3 years ago
8 0

Answer:

11.1

Step-by-step explanation:

Use the Pythagorean theorem to find the unknown side.

a^{2} +b^{2} =c^{2} \\AB^{2} +BC^{2} =AC^{2} \\AB^{2} +19^{2} =22^{2} \\\\AB^{2}=22^{2}-19^{2\\AB=\sqrt{123} \\AB=11.1

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