2 years ago

Help please?? 50 points!

Mathematics

2 answers:

Schach [20]2 years ago

7 0

$6 \sqrt{3}$
is the correct answer

Rudiy272 years ago

6 0

The triangle ABC and the triangle BCD are similar, therefore

$\dfrac{3+9}{x}=\dfrac{x}{9}\ \ \ |cross\ multiply\\\\x^2=12\cdot9\\\\x^2=108\to x=\sqrt{108}\\\\x=\sqrt{36\cdot3}\\\\x=\sqrt{36}\cdot\sqrt3\\\\\boxed{x=6\sqrt3}$

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Answer:

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Gwar [14]

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PLEASE HELP ME I WILL DO ANYTHING!!

il63 [147K]

Answer:

i’m pretty sure it’s because they make 180°

Step-by-step explanation:

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