True: the circumference is 6 times the radius, the circumference is 3 times the diameter , the radius is half the diameter, the diameter is 2 times the radius, the diameter is a special type of chord, False: the radius is 2 times the diameter, the circumference is 6 times the diamter, the radius is 4 times the circumference, a radius is a type of chord,

Leaderboard

Visual style

Options

Switch template

Continue editing: ?