Geometry homework, no idea what to do.

May 2010
2
0
Hello, I am 16 and go to an online school. There are a few problems with this, namely that my teachers almost never talk to me and that my book is written terribly.

I need some help with these questions and I need to show all the work. The problem is, I have no idea where to even begin. Could I get some help, not just getting the answers, but also actually understanding what I'm supposed to do here?
 

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Nov 2007
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Trumbull Ct
geometry homework

Hello, I am 16 and go to an online school. There are a few problems with this, namely that my teachers almost never talk to me and that my book is written terribly. To quote my brother who is studying physics my book was written by "A dyslexic autistic five year old". It's that bad.

I need some help with these questions and I need to show all the work. The problem is, I have no idea where to even begin. Could I get some help, not just getting the answers, but also actually understanding what I'm supposed to do here?
Hi blackjack

Q1 Is QAP a diameter?
Q2 The problem is clear.I am giving you answers but you need to understand why statements are made.

Draw xy
a is an angle.A is an arc.
ax is 110 A WZY =220 A wxy=360-220=140
aZ=1/2 of 140=70
WZY is isosceles aYWZ=a WYZ=180-70/2=55
aY=100 aXYW=100-55=45
axwy=180-(110+45)=25
aW=25+55=80
AWZ =1/2of 220=110
add all angles of the quad 110+80+70+100=360


bjh
 

Soroban

MHF Hall of Honor
May 2006
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6,341
Lexington, MA (USA)
Hello, Blackjack!

I will assume that \(\displaystyle A\) is the center of the circle.


Q1: Find the measure of \(\displaystyle \angle QMN.\)
Code:
              * * *
          *           *   M
        *               o
       *              *  *
                    *       70°
      *           *       *
    Q o - - - - o - - - - o P
      *       * A         *
            *
       *  *              *
        o               *
      N   *           *
              * * *

Draw chord \(\displaystyle QM.\)

\(\displaystyle MN\) and \(\displaystyle QP\) are diameters.

. . \(\displaystyle \text{arc}(MP) \,=\,70^o \quad\Rightarrow\quad \angle MAP = 70^o\)

. . \(\displaystyle \angle QAN = 70^o \quad\Rightarrow\quad \text{arc}(QN) = 70^o\)


Therefore: .\(\displaystyle \angle QMN \:=\:\tfrac{1}{2}\text{arc}(QN) \:=\:\tfrac{1}{2}(70^o) \;=\;35^o \)

 
May 2010
2
0
Thanks for the help guys, also in response, all the information given to me is in that picture. If A is the center or not, no idea. They never told me.

This is why I have trouble with this class, though I'm still getting a B+ or an A

Also, all the steps need to be shown.

I still have no idea how to simplify Cos tan and the like though, cannot find ANYTHING in the book about it.
 
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