Problem 147 of 7
Solve for the variable in cyclic quadrilateral DEFG with opposite angles x+70 degrees and x degrees.
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set opposite angle sum to 180 degrees.
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Given angles must be opposite angles of a cyclic quadrilateral.
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Solution
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1. Identify the opposite angle pair.
2. Write an equation with sum 180 degrees.
3. Solve the linear equation.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Setting opposite angles equal.