Answer:
Step-by-step explanation:
- <em>This is a cyclic quadrilateral (all vertices on the same circle)</em>
<u>Opposite angles are supplementary:</u>
- ∠A + ∠C = 180°
- ∠B + ∠D = 180°
<u>Find x:</u>
- x + 5 + x - 7 = 180°
- 2x - 2 = 180°
- 2x = 182°
- x = 91°
<u>Find D:</u>
- ∠D = x - 14°
- ∠D = 91° - 14° = 77°
<u>Find B:</u>
Answer:

Step-by-step explanation:

Move 2x to left hand side and change it's sign
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Move 5 to right hand side and change it's sign
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Collect like terms
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Calculate
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Hope I helped!
Best regards!!
This a counting circle that I found online.
A circle is round, so no matter how many degrees it is rotated it will remain the same
Answer: -97
Step-by-step explanation: