<p>So what was the answer to the question with the two triangles with 70 degrees and 110 degrees? It wanted to know the area of the second triangle if the first triangle had an area of 30.</p>
<p>1:3
560 (larges)
8 lines of symmetry (IN DEBATE)
3.14 (something with the glass)
4 (det)
how much went to charity it was like $3 an hr (2hr for small/3hr for large)
240 (avg)
3:2:1 (jerome kevin seth)
(5,0) (the square 3cm side)
384 (surface area of cube)
intersecting lines
angle was 90deg
missing side was 12 (gave u like 20 for h, and a 3,4,5 tri)
3 the area of the rect think with kA
(a/c) for some sin/cos/tan thing - letter B
30tan52
60 deg chord
goes through quad 1, 3, 4
add 18 red marbles (very similiar to a practice test question)
circle was rad38 center was like (5,0)
ice rink 16 + 8pi
rad(16+x^2)
to make the equations infinite times by 6 (2x-y=8 and 6x-3y=4a)
pass ball around 5th
midpoint was 5
60 for the other side of rect box = 81000cm3
x<42 (or 48 i forget)
overtime $322.5
72 combinations of food
ADCB
19,20
y=5t+14
pi chart 21/29
14% went to charity
.22 (add .1 to slope)</p>
<p>questions
side of rect like 4 (so 8x4)?
56xy-8xy something???
-6|-2+8|or something? what was the answer
plug in for that f(x) was like 8(x)^2
and 8a-4b+2c i think thats wrong but anyone remember the right thing</p>
<p>The symmetry one is definitely 8, you count the peaks and the valleys. For all those who got 16, you double counted the lines of symmetry when you went around the thing.</p>
<p>For the percent donated to charity, it should be 0.14</p>
<p>I put 4 lines of symmetry. You can’t count the “valleys.” A line of symmetry must make a mirror image.</p>
<p>The one with the two triangles with sides X and Y were not the same. I answered 19 but I know it’s wrong now. Was a choice 27? I’ve been working on it and got 27. Lot of work though. Law of Cosines to get the side and then Hero’s formula. I know. It doesn’t matter about the sin of 70 or 110. Whenever you see SAS, you should think law of cosines, which uses cos.</p>
<p>what number was this law of cosines problem like high 50s, what letter?</p>
<p>the one with 70 and 110 degrees is 30</p>
<p>
<a href=“http://i41.■■■■■■■.com/n3pu2p.png[/IMG]”>http://i41.■■■■■■■.com/n3pu2p.png
![http://i41.■■■■■■■.com/n3pu2p.png[/IMG]](http://i41.tinypic.com/n3pu2p.png%5B/IMG%5D){kind=link}
</a></p>
<p>A line got lost while converting from PDF to PNC, but you get the idea. Looks symmetric to me… Unless my eyes are crappier than before, I’m pretty sure it’s 8 lines. Parts of the square lines are missing as well, but it should be clear enough.</p>
<p>This is beautiful. It’s 8.</p>
<p>Why is it 30 for both?</p>
<p>no it’s 30 for the 110 one (which was asked in the question I believe)</p>
<p>I got it using guess and check - I assumed values for x and y that would make the first triangle have an area of 30</p>
<p>then I used those values and found the area of the one with 110</p>
<p>Area=(1/2)ab*sin(C)</p>
<p>It’s x*y for both areas and then sin(70)=sin(110).</p>
<p>@driscol </p>
<p>Answer is 30 correct?</p>
<p><a href=“http://i41.■■■■■■■.com/n3pu2p.png[/url]”>http://i41.■■■■■■■.com/n3pu2p.png</a></p>
![http://i41.■■■■■■■.com/n3pu2p.png[/url]](http://i41.tinypic.com/n3pu2p.png%5B/url%5D){kind=link}
<p>If you look at the bottom image and then at the vertical line, try to literally fold the image over itself. You will find it is not symmetrical.</p>
<p>If you look at the bottom image and then at the vertical line, try to literally fold the image over itself. You will find it is not symmetrical.</p>
<hr>
<p>It doesn’t fold properly because it’d drawn wrong/lines are lost. </p>
<p>If you actually print that out, and draw in the 4 missing triangles, you’ll find it to fold over perfectly.</p>
<p>anyone remember some question near the very end</p>
<p>about 3 away from a certain number expressed as</p>
<p>abs (x + 5) = 3 or something like that.</p>
<p>Yeah, sorry. I printed out your drawing and it folded correctly. Must have been a trick of the eye in fear of missing another problem :)</p>
<p>@thequestionmark</p>
<p>I put (x+3) = 5</p>
<p>Here’s the correct upload of the 4 you are missing. </p>
<p>[Imageshack</a> - act1.jpg](<a href=“http://img196.imageshack.us/i/act1.jpg/]Imageshack”>ImageShack - Best place for all of your image hosting and image sharing needs)</p>
![http://img196.imageshack.us/i/act1.jpg/]Imageshack](http://img196.imageshack.us/i/act1.jpg/%5DImageshack){kind=link}
<p>can you remember the question? i distinctly remember it being somewhat tricky…</p>
<p>Was it the number 3 away from 5 on both sides?</p>
<p>I thought it was 5 away from 3</p>
<p>Yea me too…</p>