Properties of Numbers
Circles
Pi
Famous People
Miscellaneous
100

This value is, by definition, the smallest prime number.

2

100

If a circle's radius is 5 inches, what is its diameter?

10 inches

100

Pi is a letter from this alphabet.

Greek

100

What famous scientist was born on Pi Day in 1879?

Einstein

100

The sum of the interior angles in angle triangle will always equal this number.

180

200

True or False: 64 is both a Perfect Square and a Perfect Cube

True

200

What is the line segment that passes through the center and connects two points on a circle?

Diameter

200

Pi to 3 decimal places is 3.141. What digit comes next?

5

200

Which English mathematician is credited with inventing calculus and studying alchemy?

Sir Isaac Newton

200

This value is the only whole number that can not be represented using Roman Numerals.

0

300

This classification refers to any number that can not be expressed as a fraction with an integer in the numerator and an integer in the denominator.  

Irrational Number

300

What do you call a line that touches a circle at exactly one point?

A Tangent

300

How many digits are there in Pi?  

Infinite!

300

Which Italian mathematician is best known for the sequence where each number is the sum of the two previous ones?

Leonardo of Pisa (Fibonacci)

300

This field of mathematics is concerned with the sines, cosines, and tangents of angles.

Trigonometry

400

Which property states that changing the order of addends does not change the sum?

The Commutative Property of Addition.

400

What is the term for two or more circles that share the same center?

Concentric circles

400

Which digit is completely missing from the first 30 places of Pi's decimal expansion?

0

400

Which scientist provided the exact numerical value of pi and shouted "Eureka!" after discovering the principle of buoyancy? 

Archimedes

400

A prism has the same relationship to a pyramid as a cylinder does to a ____________________.

Cone

500

What number is known as the multiplicative identity?

One (1). 

500

What is the set of all points in a plane at a given distance from a center point?

A Circle

500

Who was the first group of people to find a value for Pi?  

Babylonians

500

Who is the Greek scientist considered the "first true mathematician" and credited with early developments in geometry, including works on similar and right triangles  

Thales

500

An icosahedron is a polyhedron with 20 faces, each of which is one of these shapes.

Triangle