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2 answers:
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Given:
To find:
The value of .
Solution:
In triangle XYZ,
(Given)
(Given)
[Angle sum property]
Therefore, the is 20°.
Answer: last option.
Step-by-step explanation:
To apply the Distributive property, remember that:
Then, applying this, you get:
Combine like terms means that you need to add the like terms.
Therefore, you get:
You can observe that the expression obtained matches with the expression provided in the last option.