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larisa [96]
2 years ago
13

Find x (in degrees) in the following quadrilateral.

Mathematics
1 answer:
Ber [7]2 years ago
5 0

Answer:

x = 110°

Step-by-step explanation:

The sum of the interior angles in a quadrilateral is 360°. This means:

x + x + x - 30 + 1/2x + 5 = 360° - we can simplify this

3 1/2x - 25 = 360° - now add 25 to both sides

3 1/2x = 385 - finally divide both sides by 3 1/2

x = 385 ÷ 3.5 = 110

x = 110°

Hope this helps!

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I hope this was helpful, please rate as brainliest  

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