The measure of an angle which is vertically opposite to an angle 80⁰ is _______
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80 only..
.... Vertical opposite angles are equal
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Angles a° and c° are also vertically opposite angles, so must be equal, which means they are 140° each. Answer: a = 140°, b = 40° and c = 140°. Note: They are also called Vertical Angles, which is just another way of saying the same thing.
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