Circles

Select all the ratios that could represent the ratio of the circumference to the diameter of a circle.

The relationship between the circumference and the diameter is NOT proportional.

What the circumference of the circle, in yards, of the circle shown?  Leave your answer as the exact measure in terms of pi ( $$\pi$$ ).

Shane is building a circular table with a circumference of 343 inches (in.). What is the radius of the table rounded to the nearest inch?  Use 3.14 for $$\pi$$ .

Sunshine Preschool has a teeter totter that spins in a circle. The distance from the center to the outside edge of the teeter totter is 40 inches (in.).

What is the circumference of the circle that the teeter totter makes as it spins? Round your answer to the nearest hundredth of an inch.

  (a)    

What is the area, in square inches, of the circle shown? Use $$\frac{22}{7}$$  for  $$\pi$$

Identify the area, in terms of pi ( $$\pi$$ ), of a circle with a diameter of 10 meters?

A circular lawn has a row of bricks around the edge. The diameter of the lawn is 56 feet. 

What is the area of the amount of grass on the lawn? Use $$\frac{22}{7}$$ for $$\pi$$ .

  (a)   square feet