Problem 491.
Square, Right Triangle, Incircle, Inscribed Circle, Radius.

Typography of Problem 491.

Problem 492.
Cyclic Quadrilateral, Circle, Perpendicular, Side, Diagonal, Parallel.

Problem 493.
Right Triangle, Circumcircle, Perpendicular, Chord.

Problem 494.
Circular Sector, 90 Degrees, Semicircle, Chord, Parallel.

Problem 495.
Triangle, 120 Degrees, Angle Bisectors.

Problem 496.
Triangle, Two Squares, 90 Degrees, Concurrency, Angle Bisectors.

Problem 497.
Triangle, Two Squares, Centers, Midpoint, 90 Degrees.

Problem 498.
Triangle, Angle Bisector, Double Angle, Measure.

Problem 499.
Triangle, Two Squares, Perpendicular.

Problem 500.
Circle, Diameter, Chord, Perpendicular, Measure.