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 $$56 m$$? $$250 cm^2$$$$250 m^2$$$$260 cm^2$$$$240 cm^2$$$$255 m^2$$

 5 MEDIUM Andy is lost and rides his bike around in circles. He travels at $$3m/s$$ and it takes him 2 minutes to go around the circle. What is the radius of the circle? $$55.6 m$$$$64.1 m$$$$84.5 m$$$$36.3 m$$$$57.3 m$$

 6 HARD On average, there are 3 pepperonis every $$10 cm^{2}$$ of pizza. The side of a pizza slice is $$12 cm$$ long. How many pepperonis are on the pizza? 136135139134137