Answer:
?
Step-by-step explanation:
2x ! the number would be x and 2x is 2 times x!
3x° = (5x-20)° [Interior Alternate Angle]
=> 3x° = 5x° - 20°
=> 5x° - 3x° = 20°
=> 2x° = 20°
=> x° = 
<h3>=> x° = 10°</h3>

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Answer: 
Step-by-step explanation:
1. You have the following information:
- The lenght of
is 2 centimeters.
- The angle m∠S=80°.
- Cos80°=0.17
2. Therefore, you can calculate the lenght of the segment
as following:


3. Substitute values and solve for
:

4. To the nearest tenth:
