2019 AMC12B P21--Convex Quadrilateral & Centroid
2019 AMC12B P20--Tangents and Circle Geometry
2019 AMC12B P19--Count Binary Sequences with Const
2019 AMC12B P18--Quadratics Where Roots = Coefficients
2019 AMC12B P17--Recursive Sequence Interval Estimation
2019 AMC12B P16--Complex Numbers & Equilateral Triangle
2019 AMC12B P15-- Frog Jumping Probability
