Circle Vocabulary
The formula for circumference.
What is pi x diameter?
The formula for area of a circle.
What is pi x radius squared?
This is, most likely, the only shape you learned in kindergarten that is not considered to be a polygon.
What is a circle?
The circumference of a circle with a diameter of 8 inches.
What is 25.12in?
The area of a circle with a radius of 6m.
What is 113.04 squared meters?
The first 6 digits of pi.
What is 3.14159?
This word is used to describe the distance across a circle.
What is diameter?
The circumference of a circle with a radius of 5m.
What is 31.4m?
Pi is the 16th letter of what alphabet?
What is the Greek alphabet?
This must be squared in order to find area.
What is radius?
The radius, in inches, if the diameter is 2 feet.
What is 12 inches?
The circumference of a circle with a radius of 11.25yds.
What is 70.65yds?
The area of a circle with a radius of 100yds.
What is 31,400 square yards?
The exact value of Pi cannot be written as a fraction. Is it rational or irrational?
What is irrational? (A fraction is also known as a ratio. The prefix 'irr' means not)
This is the result when you divide circumference by diameter.
What is pi?
The diameter, in feet, if the radius is 52.5yds.
What is 315feet?
The circumference, in inches, or a circle with a radius of 4ft?
What is 301.44in?
The radius, when the area is 153.86 feet.
What is 7 feet?
In 2015, Rajveer Meena of Vellore, India set the Guinness World Record for memorizing the most digits of Pi. How many digits did he have memorized? (Closest guess wins)