Vertical angles are always - bvh.michael-huettenberger.de
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Example: Find angles a°, b° and c° below: Because b° is vertically opposite 40°, it must also be 40°. A full circle is 360°, so that leaves 360° − 2×40° = 280°. Angles a° and c° are also vertical angles , so must be equal, which means they are 140° each. Answer: a = 140°, b = 40° and c = 140°. Note: They are also called.
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