An angle measures (2x+11)°. Part A. What is the measure of an angle that is vertical to the given angle?
Part B. Write an expression to represent the measure of an angle supplementary to the given angle.

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Based on what i know about mean, this doesn't add up.

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

What is the circumference of a circle with an area of 50.24 cm²?