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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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Topic review (newest first)

zee-f
2012-12-15 00:56:20

I sure do lol.
Thanks for helping big_smile

bob bundy
2012-12-14 18:36:38

Yes, that's what I think.  You certainly need to remember to plot the points in future!

Bob

zee-f
2012-12-14 10:56:09

No I didn't plot them neutral probably why I got the question wrong the don't make a square or a right triangle So both (unfounded)

bob bundy
2012-12-14 10:38:25

hi

Did you try plotting the points?  Have a look at my diagram.

I think you'll see what to do then.

Bob

zee-f
2012-12-14 10:16:00

2 more left  big_smile

I answered C for both it was incorrect neutral

19. The given points (4, -8), (4, -5), and (-2, -6) make a right triangle.
A Distance Formula
B Definition of a right triangle
CDefinition of a triangle
Dunfounded
E Pythagorean Theorem
F Definition of radius


20. The given points (2, -3), (-7, -7), (2, -7), and (-7, -2) make a square.
A Definition of coordinate
BPythagorean Theorem
CDefinition of a square
DDefinition of supplementary angles
E Distance Formula
F unfounded

bob bundy
2012-12-14 07:27:39

Yes.  That's what I think.

Bob

zee-f
2012-12-14 07:23:42

No the radius isn't cut into equal parts so that whole statement is incorrect So C would be a good answer

bob bundy
2012-12-14 06:46:55

I think my diagrams will show you what to do here.

Bob

zee-f
2012-12-14 06:34:26

E was incorrect I still don't see why O_o

16. If a radius bisects a chord, then the lengths of the parts of the radius on either side of the chord are equal.

A Given
BDefinition of a chord
Cunfounded
DDefinition of supplementary angles
E Definition of a bisector
F Definition of radius

zee-f
2012-12-14 06:33:10

yeah I was stuck on which one to choose to. lol

bob bundy
2012-12-14 06:21:16

I see why you said E to start with.  I would say that D and E are the same.  But if E isn't acceptable, D seems good to me.

Bob

zee-f
2012-12-14 06:10:51

I choose E and it was incorrect

my new answer is D
14. If a central angle is 30 degrees, then the arc it defines is also 30 degrees.

A Given
BDefinition of an inscribed angle
Cunfounded
DProperties of a central angle
E Properties of an arc
F Definition of radius

bob bundy
2012-12-14 05:06:32

Yes, that's what I would choose.

Bob

zee-f
2012-12-14 04:16:55

So B would be a good answer ?

zee-f
2012-12-14 04:15:48

no EJ ≠ Jm

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