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I know that x equals 10 using guess and check. I just need to know the equation.

I know that x equals 10 using guess and check. I just need to know the equation.-example-1
User Hbarck
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Answer:

The angle is equal to half of the arc on which it relies on. So the arc is equal to the angle, hence small arc EC is 110°. 23x+5=250 -> x=245/23. I conot spot my mistake can you?

User Cmhughes
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