standard_description: Derive the equation of a circle of given center and radius using the Pythagorean Theorem; complete the square to find the center and radius of a circle given by an equation.
problem_activity: Problem 5
Pre-unit
[IMG]
Explain or show how the drawing shows \(2 \div 5\).
Explain or show how the drawing shows \(\frac{2}{5}\).


aligns: no