Can you name the A to Z geometry terms? by naturefreak2101

Letter	Term
(A) The line representing the 'height' of a triangle
(B) Line or segment which splits another segment or angle into equal parts
(C) Term for two angles that add to 90 degrees
(D) A line segment that goes from one point on a circle to another, through the center
(E) A conic section that appears to be a squashed circle
(F) An infinitely detailed figure, composed recursively of smaller versions of the original figure
(G) What this quiz is about!
(H) The longest side of a right triangle
(I) A triangle that has two equal sides
(J) What every step of a proper proof requres (usually in the form of a theorem or postulate)
(K) A quadrilateral with two sets of congruent, adjacent sides
(L) Term for a pair of adjacent, supplementary angles
(M) Line segment connecting a vertex of a triangle with the midpoint of the opposite side

Letter	Term
(N) A figure with nine sides
(O) Term for any angle between 90 and 180 degrees
(P) A conic section, familiarly recognized algebraically in the form y = ax² + bx + c
(Q) One of the four standard regions in the Cartesian coordinate system
(R) A quadrilateral with four equal sides
(S) A perfectly round three-dimensional object with a single radial length
(T) Greek symbol often used to represent an angle measure
(U) A vector whose length is one
(V) Term for two non-adjacent angles formed from the intersection of two lines
(W) The region between two concentric circles with different radii; also a piece of hardware
(X) Alternate name for the two-dimensional Cartesian coordinate system (two words)
(Y) One of the two base-lines in the above system
(Z) Δy/Δx of a horizontal line
(R) A quadrilateral with four equal sides

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Geometry A to Z Quiz

by naturefreak2101

Created Dec 10, 2010 in Science
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	naturefreak2101:	Dec 10th, 2010 at 07:17 GMT	0 points
	Feel free to make comments/suggestions/constructive criticism! This wasn't an easy quiz to put together (a few letters I had to stretch a bit to make them work). If you have any better ideas, better wordings for hints, or think I should simply take out a problem letter like "W" or "Z", feel free to voice them. Also make sure to keep in mind what those suggestions might entail (I can't replace "linear pair" with "line," because I use "line" in so many clues). Thanks! :)

	D_FenestrationX:	Dec 10th, 2010 at 10:42 GMT	2 points
	I'm fairly sure "zero" should be acceptable for the last one, as it's talking about a derivative so the notion of slope is already implied.

	ArtVandaley:	Dec 10th, 2010 at 13:52 GMT	1 point
	I think W's definition can be improved, after I saw the answer it made sense but I am not sure it as clear as can be. Also agree with the person above, I typed zero and never typed slope. I am also a terrible speller of math terms. Great job.

	puckett86:	Dec 10th, 2010 at 15:15 GMT	2 points
	An ellipse is not a flattened circle. A circle is already flattened, as it is a 2-D object. A circle is actually a special case of an ellipse. Also, maybe change the format a little. Instead of having everything in the left column, put just the hint in the left column and create a right column that has just the first letter of the term. Good quiz though. Always love math terms quizzes.

	Pit_trout:	Dec 10th, 2010 at 18:36 GMT	0 points
	re @puckett86’s suggestion: maybe replace “flattened” with “squashed” or similar? For Q, maybe “one of four standard regions in…” would be better wording — the current one is a bit misleading given the specific meaning of “section” in geometry? For V, I can’t understand the clue at all, and I don’t know any usage of “vertical” that seems to fit it — maybe this is a difference in US/UK terminology or something (I was brought up in the UK)? A replacement for it could be “A symbol representing an object or quantity, eg x, θ, L”.

	naturefreak2101:	Dec 10th, 2010 at 18:58 GMT	1 point
	@Pit_trout: http://en.wikipedia.org/wiki/Vertical_angles is an article about vertical angles - when I was in school, I didn't know them as such either, but in all the modern classes (from students I've tutored), they seem to use the term consistently. Took a couple of your suggestions - squashed gives more of the non-professional description I was looking for than flattened, and I can understand your rewording of the quadrant clue. As for the washer clue, I can't think of any other Geometry related "W" with a decent clue. As it is, I think it is gettable if you think about it. Also allowed "Zero" for "Zero slope", although it's kind of a cheap clue. Thanks for all the advice, and keep it coming!

	ThurinEthir:	Dec 10th, 2010 at 21:25 GMT	3 points
	W could be width or something? Not the most mathematical of terms, but the current clue just makes me think "annulus."

	zifyoip:	Dec 13th, 2010 at 12:20 GMT	3 points
	Hmm, I've never heard of "linear pair," although a Google search seems to indicate it's a common term. Perhaps locus, lune, lateral surface, or law of sines instead? There are also a bunch of L words describing various kinds of curves, including lemniscate, limaçon, lituus, Lissajous curve, and logarithmic spiral.

	Atticus97:	Dec 8th, 2011 at 20:07 GMT	1 point
	We call Justifications reasons. It's cool because i've never heard reasons called justification. Do you call statements something else?

	lexiedrew:	Mar 11th, 2012 at 21:55 GMT	1 point
	you should accept more variations of the spelling for "complementary"

	naturefreak2101:	Mar 12th, 2012 at 17:21 GMT	1 point
	Technically, "complementary" is the only correct spelling. However, given that I don't like it when I know an answer but didn't have the same spelling as the quiz-maker, I added "complimentary" as an acceptable answer (which I presume you were referring to), as it is a common misspelling.