Pi Day Word Search
Pi Day lands on March 14 because the date reads 3.14, the opening digits of pi. Larry Shaw, a physicist at the Exploratorium in San Francisco, started the celebration in 1988 with a small parade and fruit pies. Pi is irrational, so its decimals run on forever without settling into a repeating pattern.
Pi Day word search (Easy)
Find these 10 words
10 words, across and down only
- circle
- decimal
- diameter
- geometry
- math
- number
- pi day
- pie
- radius
- three
Pi Day word search (Medium)
Find these 15 words
15 words, adds diagonals
- circle
- constant
- decimal
- diameter
- equation
- formula
- geometry
- math
- number
- pi day
- pie
- radius
- ratio
- sphere
- three
Pi Day word search (Hard)
Find these 20 words
20 words, any direction, backwards too
- arc
- chord
- circle
- circumference
- compass
- constant
- decimal
- diameter
- equation
- formula
- geometry
- infinite
- math
- number
- pi day
- pie
- radius
- ratio
- sphere
- three
Free to print. Press Print for a clean sheet with just the puzzle and the word list. Turn on Large print for bigger letters, or Show answers to print the answer key.
Words in the Pi Day word search
Every word used across the three levels, with a quick note on what it means.
- pi day
- March 14 celebration named for the digits 3.14.
- circle
- Round shape with every edge point equally distant from center.
- pie
- Baked dish with crust, eaten widely on this date.
- math
- The study of numbers, shapes and patterns.
- number
- A value used for counting or measuring.
- three
- The whole number pi begins with.
- radius
- Distance from a circle's center to its edge.
- diameter
- Straight line across a circle through its center.
- decimal
- Digits written after a point, as in 3.14.
- geometry
- Branch of math dealing with shapes and space.
- ratio
- Comparison of two quantities, such as circumference to diameter.
- formula
- Rule written in symbols for finding a value.
- equation
- Statement that two math expressions are equal.
- constant
- A value that never changes, as pi does.
- sphere
- Perfectly round solid, like a ball.
- compass
- Hinged tool for drawing circles on paper.
- arc
- Any curved section of a circle's edge.
- chord
- Line joining two points on a circle.
- circumference
- The distance all the way around a circle.
- infinite
- Having no end, like the digits of pi.
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