What do you call an angle more than 90 degrees and less than 180 degrees?

What’s the top number of a fraction called?

What Greek math whiz noticed that the morning star and evening star were one and the same, in 530 B.C.?

What’s a polygon with four unequal sides called?

What’s a flat image that can be displayed in three dimensions?

What number does “giga” stand for?

What digit did Arab mathematician al-Khwarizmi give to the West around 800 B/B.?

What word describes a number system with a base of two?

How many equal sides does an icosahedron have?

What do mathematicians call a regular polygon with eight sides?

What T-word is defined in geometry as “a straight line that touches a curve but continues on with crossing it”?

What geometrical shape forms the hole that fits and allen wrench?

What number is an improper fraction always greater than?

What two letters are both symbols for 1,000?

What’s short for “binary digit”?

What century did mathematicians first use plus and minus signs?

What number, a one followed by 100 zeros, was first used by nine-year-old Milton Sirotta in 1940?

What do mathematicians call a regular polygon with seven sides?

What do mathematicians call a regular polygon with ten sides?