Pi Day

Who is credited with introducing the mathematical symbol π to represent the ratio of a circle's circumference to its diameter?

• Leonhard Euler

• Galileo Galilei

• Albert Einstein

• Isaac Newton

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CCSS.RI.2.1

What is the approximate value of Pi (π)?

• 3.14159

• 3.14

• 3.141

• 3.142

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CCSS.RI.2.1

In which year was Pi Day first celebrated?

• 2005

• 2010

• 1988

• 1999

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CCSS.RI.2.1

What is the formula to calculate the circumference of a circle using Pi?

• 2 * Pi * radius

• 2 * Pi * circumference

• 2 * Pi * diameter

• Pi * radius^2

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CCSS.RI.2.1

In which scenario is Pi (π) essential for calculating the relationship between the diameter and the perimeter of a shape?

• Measuring the perimeter of a square

• Calculating the area of a rectangle

• Finding the circumference of a circle

• Estimating the volume of a cylinder

What is the term for the ratio of a circle's circumference to its diameter?

• sigma

• phi

• pi (π)

• tau

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CCSS.RI.2.1

CCSS.RI.2.4

In which branch of mathematics is Pi commonly used?

• Geometry

• Algebra

• Calculus

• Statistics

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CCSS.RI.2.1

What is the name of the day celebrated on March 14th, in honor of Pi (π)?

• Circle Day

• Mathematics Day

• Pi Day

• Geometry Day

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CCSS.RI.2.1