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How do you prove that all circles are similar?
What Does Thales's Theorem State?
How do you construct the inscribed cirle of a triangle?
Circle of Apollonius
How do you show by similarity that the length of the arc intercepted by an angle is proportional to the radius?
How do you define the radian measure of the angle as the constant of proportionality?
How Do You Calculate the Area of a Circular Sector?
What Is the Equation of a Circle?