Pi and Parts of Circle

If the diameter of a circle is 50 yards, the radius is _____

• 100 yards

• 25 yards

• 150 yards

• 15 yards

To mathematically calculate the special number "pi" you need the __________________________.  

• circumference  &  the diameter 

• diameter  &  the radius 

• any two parts of the circle 

The number pi is approximately equal to _________. 

• 3.14

• 3

• whatever the diameter equals 

The number pi ________________

• has only 3 digits

• never ends  &  never repeats 

• ends eventually
  (it is just a really long number)

what is the symbol for pi

• £

• π

• Π

• •

Th distance around the circular cake is 9.42 inches. The distance across the cake is 3 inches. What happens when you divide 9.42 by 3?

• You get the area of the circle

• You get pi

• You get the diameter of the circle

The only way to get exactly pi is...

• 3.141592...

• 22/7

• circumference / diameter

• go to a store and buy it

• bake it

_diameter?

• 5 in

• 10 in

• 3.14 in

• 2.5

I own a circular piece of property. I have created a lovely park which is shown in the picture in the shade of yellow. What is the area of my park?

• 19.625 miles²

• 25 miles²

• 39.25 miles²

• 78.5 miles²

What is the area of the shaded region?

• 8 cm²

• 16 cm²

• 50.24 cm²

• 200.96 cm²