Algebra warm up 3/14 and 3/15

On what day is Pi Day celebrated?

• January 1
• March 14
• March 13
• February 13

Tags

CCSS.7.G.B.4

What is the "formal" definition of pi?

• 22/7
• 3.1415926
• the ratio of a circle's circumference to its diameter
• the surface area of a sphere of diameter 22/7

What does this symbol represent?

• a letter from the English alphabet
• a greek letter
• pie
• pi

Tags

CCSS.HSG.GMD.A.1

What is pi used to find? 

• the perimeter of a square
• the area of a rectangle
• radius of a circle
• circumference of a circle

How many digits are in pi?

• 10 trillion
• 5 billion 
• infinite 
• a lot 

Are pi's digits periodic? In other words, do the digits ever repeat themselves in any pattern?

• No, pi is irrational
• Yes, every 6,000,000 decimal places
• Yes, every infinitely long number repeats
• Maybe, not enough digits of pi are known yet

Which of these ratios is the closest approximation of pi?

• 13/4

• 16/5

• 19/6

• 22/7

Tags

CCSS.HSG.GMD.A.1

How many 1s are in the first million decimal places of pi?

• 99758
• 98578
• 97857
• 96875

What famous scientist was born on Pi Day in 1879?

• Archimedes
• Einstein
• Galileo
• Newton

Lu Chao of China set a world record by memorizing the most digits of pi.  How many digits did he memorize?

• 67,890
• 68,980
• 69,760
• 60,967