Pi Day

What is needed to measure the circumference of a circle?

• A ruler

• A compass

• Measuring tape or a piece of string

• A calculator

Tags

CCSS.HSG.CO.A.1

CCSS.HSG.CO.D.12

CCSS.HSG.GMD.A.1

What is the relationship between a circle's circumference and its diameter?

• Directly proportional

• The circumference is twice the diameter

• Inversely proportional

• No relationship

Tags

CCSS.HSG.GMD.A.1

For how long has the number representing the ratio of a circle's circumference to its diameter been known?

• 500 years

• 2,000 years

• 1,000 years

• Almost 4,000 years

Which civilizations are known to have estimates of the ratio of a circle's circumference to its diameter?

• Mayan and Aztec

• Ancient Greek and Roman

• Ancient Greek, Babylonian, Chinese, and Indian

• Babylonian and Egyptian

By what method did mathematicians estimate the ratio of a circle's circumference to its diameter?

• Inscribing polygons in circles

• Calculating the area of the circle

• By measuring with a string

• Using a compass

Tags

CCSS.7.G.B.4

What type of number is the ratio of a circle's circumference to its diameter?

• Rational number

• Whole number

• Prime number

• Irrational number

Tags

CCSS.HSN.RN.B.3

How many digits of the ratio of a circle's circumference to its diameter were calculated by the year 1400?

• Twenty decimal places

• Three decimal places

• Ten decimal places

• Five decimal places

What symbol is used to represent the ratio of a circle's circumference to its diameter?

• Pi

• Omega

• Alpha

• Sigma

What is one of the scientific uses of the ratio of a circle's circumference to its diameter?

• Measuring the height of a building

• Predicting weather patterns

• Determining the volume of a can of soda

• Calculating the speed of light

Tags

CCSS.HSG.GMD.A.1

How many digits of the ratio of a circle's circumference to its diameter do most scientific uses require?

• The first forty digits

• The first hundred digits

• The first two digits

• The first ten digits