Radius, Circumference, and Area of Circles
Geometry, and more...

 1 EASY What is the diameter of sphere with radius $$1 km$$? $$3 km$$$$4 km$$$$0.5 km$$$$2 km$$$$1 km$$

 2 EASY A ball has a radius of $$3 cm$$. What is the circumference of the ball? 16.7719.2815.6318.8518.55

 3 EASY What is the diameter of this circle? 12369

 4 EASY What is the area of a circle with circumference $$56 m$$? $$250 cm^2$$$$250 m^2$$$$260 cm^2$$$$240 cm^2$$$$255 m^2$$