21. Find the radius of a circle if diameter is 24cm

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis. how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

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