Pi Day Circle A

How is Pi defined?

• The ratio of the diameter of a circle to its circumference

• The ratio of the circumference of a circle to its diameter

• The ratio of the radius of a circle to its circumference

• The ratio of the circumference of a circle to its radius

Pi rounded to 9 decimals is:

• 3.141952654

• 3.142592654
  

• 3.141592654

• 3.142952654

If you multiply Pi by the square of the radius of a circle, what do you get?

• The circle's diameter

• The circle's area

• The circle's circumference

• The circle's radius

Pi is best described as what type of number?

• an irregular fraction

• irrational number

• an integer

•  a rational number

True or false: there is a 'pi day'?

• True

• False

Which of these fractions is closest to Pi?

• 45 over 16

• 5 over 3

• 21 over 8

•  22 over 7

What was Archimedes' famous method to approximate Pi?

•  fins a square of the same area of a circle and deduce an approximation for Pi

•  calculate the perimeters of n-sided polygons inscibed and circumscibed in a circle and make n tend to infinity

• calculate the diameter of a circle fixing it's circumference at 1

•  bake pies and calculate it's circumference

The transcendance of Pi is linked to the famous ancient problem. Is it:

• The trissection of an angle

• the square egg

• the squaring of a circle

• the duplication of a cube

Who did the first proof to find the number pi?

• Archimedes 

• Pythagorus

• Socrates

• Boyle

People tried for centuries to "square the circle". What were they trying to do?

• Construct a square to perfectly circumscribe a circle

• Construct a square of equal area to a given circle

• Multiply a circle by itself

• fit a round peg in square hole