Don’t be a square, it’s time to shape up and test your Geometry knowledge.
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The Dorky Round
One
The interior angles of any triangle add up to what?
180 Degrees
Two
Two lines that never intersect are called what?
Parallel
Three
In a right triangle, what do you call the longest side?
The hypotenuse
Four
What’s the geometric term for a 2-dimensional flat surface?
A plane
Five
22/7 is a rough approximation for what geometric number?
Pi (or 3.14)
Six
How many straight lines can be drawn through two points?
One
Seven
A quadrilateral with one set of parallel lines is called what?
A Trapezoid.
Eight
If we had two sets of parallel lines on a quadrilateral, we have what?
A parallelogram
Nine
Now, let’s make that parallelogram have all four sides the same length. What do we have now?
A rhombus
Ten
Let’s now take that rhombus and make all four corners have right angles, what shape do we have?
A square
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The Geeky Round
One
What is the minimum number of sides to make a geometric solid?
Four sides. That makes a tetrahedron (or a D4 for RPG players)
Two
The Cartesian Coordinate System is named after who?
Rene Descartes
Three
If you’re using the formula A²+B²=C², what are you trying to figure out?
The sides of a Right Triangle
Four
What would you call a 2-dimensional object with seven sides?
A heptagon. Septa is the Latin prefix for Seven whereas hepta is Greek
Five
How many times can a line segment be bisected?
One
Six
The sum of complementary angles is what?
90 Degrees
Seven
How many sides would a nonagon have?
Nine
Eight
What do you call a two-dimensional object with only one side?
A mobius strip
Nine
What do you call a triangle with all three sides having different lengths?
A scalene triangle
Ten
A straight line connecting two points on a circle is a what?
A chord
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The Nerdy Round
One
What’s the formula for calculating the volume of a cylinder?
Pi x R² x H or Pi times the radius of one end squared times the height.
Two
Euclid of Alexandria was born in what century?
The 4th Century BCE
Three
What is the distance called between two points of a sphere along its surface?
The Great-circle distance
Four
The interior angles of any hexagon add up to what?
720 degrees
Five
A polygon with 20 sides would be called what?
An icosagon
Six
The five-pointed star, like you would see on a US flag, is called what in geometry?
A regular concave decagon
Seven
A slice of a circle that comes from the center point (like a piece of pizza) is called what?
A sector
Eight
In three dimensional geometry, if you have two lines that do not intersect and are not parallel, what are they?
Skew Lines
Nine
What Greek mathematician wrote the works, On the Sphere and the Cylinder and On Spirals?
Archimedes
Ten
What is the type of geometry that is based on a curved plane, not a flat plane?
Non-euclidean Geometry
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