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What is x for Unknown angle problems with algebra?

What is x for Unknown angle problems with algebra?-example-1
User Venkat V
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1 Answer

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Answer:

x = 20

Explanation:

We see that the whole measure angle is equal to 90 degrees. According to Part-Whole-Postulate, if we add the smaller angles, we will get 90 degrees. Knowing this, we can form an equation to find the value of x.

x + 2x + (x + 10) = 90

Now you just solve this equation

x + 2x + x + 10 = 90

4x + 10 = 90

4x = 80

x = 20

User Sanguineturtle
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