Pi Math Problems (NO CALC)
What is the circumference of a circle with a radius of 18 inches. Give your answer in feet and in terms of π.
3π feet
What college famously releases their decisions for their incoming undergraduate class on pi day?
MIT (Massachusetts Institute of Technology)
What kind of pie is traditionally made for Thanksgiving?
Pumpkin Pie
A family lives in a circular house and one day the father sees there is wine spilled on the rug. He calls everyone for a meeting. The son says, “I was playing outside.” The maid said, “I was sweeping in the corner.” The mom said, “I was cooking in the kitchen.” Who is lying?
The maid (there is no corner)
Find the product of the first 7 digits of π. The first 3 before the decimal counts as a digit!!! NO CALCULATOR
1080
What scientist popularized the symbol of pi π?
Leonhard Euler
What pie is Florida known for?
Key Lime Pie
How many ways can you cut a pie into only square pieces (without wasting any)?
0
If one yard is three feet, find the area of a circle with a diameter of 2 yards. Give your answer in feet2, and in terms of π.
9π feet2
What does the math symbol pi represent?
The ratio of a circle's circumference to its diameter
What are the three most famous pies in the U.S.?
Apple, pumpkin, cherry
Five people are in line to get pie. Christopher is before Max, and Zoey is after Kelly. Kelly is not in the very front, but she is before Christopher. Prabodh is not last in line. Kelly is between Prabodh and Christopher. What order will these people get their pie, from front to back?
Front to back: Prabodh, Kelly, Christopher, Zoey, Max
Solve this trigonometric equation for x=π.
2cosx - 1 = ???
-3
What is the way to represent the value of π in fractional terms (hint: just accurate up to three digits).
22/7
What was the radius of the largest pie ever made? Answer in feet. Within 1 foot of the right answer will be accepted.
10 feet
Max and Steven decided to race against each other. They bet $1 on each sprint they ran against each other. Max won three bets and Steven won $5. How many games did they play?
11. Because Steven lost three races to Max, he had lost $3 ($1 per race). So, he had to win back that $3 with three more races, then win another five races to win $5.
Find the surface area of a cylinder with a height of 8 feet and a radius of 2 feet. Give your answer in feet2 and in terms of π.
40π
Which digit shows up most in the first million decimal places of pi?
5
The first pies, mostly made of meat, were called what?
Coffins
You are near the edge of a vast desert (think Sahara) and are being chased by a murderous gang of criminals. To cross the desert, (and get to water and more importantly pie) you need some essential supplies. You see a man with a camel and what looks to be enough supplies to get you across the desert. The stranger tells you he can take you across the desert, a journey that will take seven days. As you barter with your would-be savior, he spots a bar of gold in your bag, a 7-inch bar of gold.
"I will take you across this desert to your safety. In return you must give me an inch of gold every day for seven days," the stranger said. "But you may only make two cuts." How do you give one inch per day for seven days while only making two cuts?
The first cut is made at the one-inch mark. For the first payment, you give him the one-inch piece. On the second day, you make the second cut, splitting the remaining six-inch bar in two: a two-inch and a four-inch piece. Then you give him the two-inch piece and take back the one-inch piece.
On the third day, you give him the one-inch piece and let him keep the two-inch piece.
On the fourth day, you give him the four-inch piece and take back the other two pieces.
On the fifth day, you give him the one-inch piece and let him keep the four-inch piece.
On the sixth day, you give him the two-inch piece, take back the one-inch piece and let him keep the four-inch piece.
On the seventh day, you give him the one-inch piece and let him keep the other pieces.