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Dvinal [7]
3 years ago
14

Need explanation and answer

Mathematics
2 answers:
Mandarinka [93]3 years ago
7 0

Answer:

x = \sqrt{12} = 3.464

Step-by-step explanation:

AC=AD+DC=13\\\text{Because ABC is a right triangle then}\\AB^2=AD.AC\\\Rightarrow AB^2=1 \times 13=13\\\Rightarrow AB = \sqrt{13}\\\text{In the right triangle ABD, since Pythagoras we also have}\\AB^2=AD^2+BD^2\\\Rightarrow BD^2=AB^2-AD^2\\\Rightarrow x^2= 13 - 1=12\\\Rightarrow x = \sqrt{12} = 3.464.

Anarel [89]3 years ago
6 0

1=22e 3663 30-4949-29238342

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