Understanding Pi: The Magic Constant

What is the significance of the number 3.14 in mathematics?

• It is the ratio of diameter to circumference.

• It is the magic number.

• It represents the constant Pi.

• It is a repeating decimal.

Who was one of the first to attempt calculating Pi?

• Euclid

• Newton

• Archimedes

• Pythagoras

What was the role of ENIAC in the history of Pi?

• It determined more decimals of Pi than ever before.

• It was used to calculate the first 100 digits of Pi.

• It was the first to use Pi in calculations.

• It proved Pi is a repeating decimal.

How do you calculate the circumference of a circle using Pi?

• Using the formula πD

• Using the formula 2πD

• Using the formula πR²

• Using the formula 2πR

What formula involves Pi to find the area of a circle?

• πD²

• πD

• 2πR

• πR²