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Answer please due today
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Answer please due today

Answer please due today-example-1
User Sachin Gevariya
by
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1 Answer

2 votes

Answer:

CD=9

Explanation:

ΔABD=>

AD²=AB² + BD² [Pythagorean Theorem]

BD²= AD²-AB²

BD²=9²-3²

BD²=72

BD=√72=6√2....(1)

ΔBCD=>

CD²=BD²+BC²

CD²=(6√2)² + 3²

CD²=72+9

CD²=81

CD=√81

CD=9

User David Cheung
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8.9k points
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