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Sunday, September 18, 2011

hw #1-6 Constructions / Mid-Chapter Quiz

8 comments:

  1. im really stuck on 23 of the midchapter quiz...i feel like it should be much easier than i am making it out to be...all the answers i have figured don't make sense...the measure of angle FCA equaly fifty seems like it is really important,but i can't figure out why

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  2. (Warning: Glue a sponge to your forehead, cuz it might hurt when you hit it with the palm of your hand!!)

    It is given that ACD is a line (aka straight angle). m<FAC is 50, the marks on <FAC and <ECD indicate congruence (therefore equal measure).

    m<FAC + m<ECD + m<FCE = 180, right??

    algebra rollercoaster, anyone??

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  3. Dear Bloggers:

    I will be away all Sunday afternoon and evening, so please help each other out with questions and answers. Remember when you help someone to try and figure out a hint or question that will help them... it may also help you to view the question in from different angle.

    Ciao for now!
    Mr. C.

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  4. Geometry allows you to make VERY FEW ASSUMPTIONS from drawings. That said, you can typically assume that a line is a line... i.e. the three figure/drawings on page 41, Points A,P,Q,R,B are all on one line, Points A,B,D are all on one line and Points A,C,D are all on one line.

    You can assume very little else.

    Ca-peesh?

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  5. My questions! SOMEONE PLEASE HELP :(


    When recreating an angle, for example on #22, am I allowed to extend the "Base line" of the angle so I can recreate it more easily? Or is there a better way?



    I'm stumped on #33 on pg 48. I don't understand the wording or how to fit the right words into the sentence for it to make sense...



    I'm stuck on #16 on the Mid-Chapter Quiz on pg 41. I have no idea how to find x! Help?



    Is there a more "Geometric" way of solving #22 on the Mid-Chapter Quiz or can I just subtract 95 from 130 to find the measure of the angle?




    I'm stumped on #24 on the Mid-Chapter Quiz.. I tried to make a line where 'Q' was not the midpoint but couldn't come up with anything, but I have a feeling that "My friend" (As stated in the question) is not correct..


    Do we have to memorize the definitions of all of the postulates for the quiz, or do we just need to know how to use them? Will the postulates all be on the quiz?

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  6. Mr. C-- If you have any time at all, please do answer my questions, I can check the answers in the morning or while I'm on the bus from my phone :( Just please, someone!

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  7. For #22, the m<FCB is simply m<FCD - m<BCD, yes? You can extend lines, but I'm not sure why you would need to in this case. Oops, now I see that you answered your own question. You may use your algebraic skills in Geometry, OK?

    For #33, the two angles sum to 180 (linear pair postulate) so 2x+3x=180 (roller-coaster time again, yes?)

    For #24, look at the diagram used for 21-23.
    Let's say that AC=CE. Is C the midpoint of of segment-AE? I think NOT!

    You should have a good working knowledge of the postulates and theorems, but memorization is not required. You CERTAINLY will never be asked to regurgitate them by number, i.e. "State Postulate 6."

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  8. But AE is not a segment? 0.0

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