jadsmi1350 jadsmi1350 02-12-2020 Mathematics contestada Select the three true statements. 1. pi is the area of a circle of radius 1. 2. pi is the area of a circle of diameter 1. 3. pi is the circumference of a circle of radius 1. 4. pi is the circumference of a circle of diameter 1. 5. pi is the constant of proportionality relating the diameter of a circle to its circumference. 6. pi is the constant of proportionality relating the radius of a circle to its area.