Look at the picture.
ΔZYX and ΔDYC are similar. Therefore the lengths of sides are in proportion:

DC = x
ZX = 16
DY = a
ZY = a + a = 2a
Substitute:

<em>multiply both sides by 16</em>

<h3>Answer: CD = 8</h3>
Answer:
sup
Step-by-step explanation:
whats your question
Las razones de los lados de un triángulo rectángulo se llaman razones trigonométricas.
Espero te ayude :)
Answer:
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Okey, bye
Step-by-step explanation:
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Answer:
it's c
Step-by-step explanation:
there are 8 bears and 6 monkeys!
hope this helps:)