Geometry @ ATDP 2008
Chat Room

[08:32:28] kellyz joined.

[08:32:46] kellyz: -sigh-

[08:32:51] kellyz: i feel lonely in here

[08:33:34] kellyz went away: Waiting for ppl to come on!... while doing hwk...

[09:33:29] kellyz left.

[13:25:40] kellyz joined.

[13:31:39] rotorhead joined.

[13:39:45] kellyz: blah

[13:39:55] rotorhead: ?

[13:39:58] rotorhead: hw hard?

[13:40:14] kellyz: ok-ish....

[13:40:17] kellyz: :-/

[13:40:20] kellyz: i haven't done much

[13:40:35] kellyz: -sigh-

[13:42:03] rotorhead: you should have done them last night

[13:42:09] rotorhead: then you can chill now

[13:47:17] rotorhead: hungry

[13:47:19] rotorhead: bye

[13:47:20] rotorhead left.

[13:47:50] kellyz went away: doing hwk

[15:09:22] rotorhead joined.

[15:23:34] Ben Johnson joined.

[15:23:47] Ben Johnson: i need help

[15:23:51] Ben Johnson: #5.

[15:23:57] Ben Johnson: hw77

[15:24:14] Ben Johnson: anyone there?

[15:24:48] rotorhead: bei cheen seen

[15:25:03] Ben Johnson: mk.

[15:25:15] Ben Johnson: so csn u help me?

[15:25:27] Ben Johnson: *csn

[15:25:31] Ben Johnson: **can

[15:25:45] Ben Johnson: or r u working on chinese?

[15:25:47] rotorhead: im not good with constructions

[15:25:53] Ben Johnson: grr.

[15:25:55] rotorhead: i havent really learn them

[15:25:59] Ben Johnson: ok.

[15:26:05] rotorhead: nor practiced

[15:26:24] Ben Johnson: well...u know about proportions right?

[15:26:31] Ben Johnson: and the geometric mean?

[15:26:47] rotorhead: ........................

[15:27:20] Ben Johnson: cuz i was wondering..if y:w=z:x....

[15:27:32] Ben Johnson: does x just equal y?

[15:27:45] rotorhead: let me have a couple mins

[15:27:52] rotorhead: ill try to igure it out

[15:27:54] Ben Johnson: cuz then y would be the geo. mean...

[15:27:55] Ben Johnson: o.

[15:27:57] Ben Johnson: mk.

[15:29:04] rotorhead: use similar triangle

[15:29:23] Ben Johnson: uh...how?

[15:29:39] rotorhead: y perpendicular w

[15:29:50] rotorhead: using w construct z from endpoint

[15:30:18] rotorhead: create a line endpoint w to endpoint of y

[15:31:35] Ben Johnson: ......

[15:31:38] rotorhead: create perpendicular from endpoint of z to form line x

[15:31:43] rotorhead: i know its confusing

[15:31:44] rotorhead: but

[15:31:47] rotorhead: yea....

[15:31:55] rotorhead: im not sure if it works

[15:32:06] rotorhead: im most likely wrong

[15:32:18] Ben Johnson: ok...is y perpendicuar to w at its endpoint?

[15:32:48] Ben Johnson: or is y perpendicular to w at its midpoint?

[15:32:52] rotorhead: ok

[15:32:57] rotorhead: lets make it clearer

[15:33:02] Ben Johnson: mk..

[15:33:11] rotorhead: my bro is going to help out

[15:33:16] Ben Johnson: mk.

[15:33:18] rotorhead: he knows construction better than i do

[15:33:23] Ben Johnson: mk.

[15:33:27] rotorhead: because his teacher actually went over it

[15:33:31] Ben Johnson: mk.

[15:37:16] Ben Johnson: .....

[15:37:41] zhenghaoxiang joined.

[15:37:51] Ben Johnson: i think i got it.

[15:37:54] zhenghaoxiang: hello

[15:37:59] Ben Johnson: uh...hey.

[15:38:09] zhenghaoxiang: so which one did u need help on

[15:38:11] Ben Johnson: is this sheldon's bro

[15:38:26] zhenghaoxiang: yea

[15:38:30] Ben Johnson: o...um..

[15:38:34] zhenghaoxiang: im stanley

[15:38:41] zhenghaoxiang: so u dont have to keep saying sheldon's bro

[15:38:48] Ben Johnson: lol.

[15:38:49] Ben Johnson: mk.

[15:39:13] zhenghaoxiang: so did u get it or do u still need help

[15:39:32] Ben Johnson: i got it...but im not sure...so yea i guess i still need help.

[15:39:56] zhenghaoxiang: ok a hint is to look at construction 13 on p397

[15:40:16] zhenghaoxiang: look at y as if it was a

[15:40:25] zhenghaoxiang: and look at w as if it was b

[15:40:35] zhenghaoxiang: and z is like c

[15:40:36] zhenghaoxiang: in this case

[15:41:18] Ben Johnson: o.

[15:41:19] Ben Johnson: ok.

[15:41:21] Ben Johnson: thnx.

[15:41:28] Ben Johnson: :P

[15:41:36] Ben Johnson: that makes sense.

[15:41:44] Ben Johnson: is hao ur middle name?

[15:41:52] rotorhead: no

[15:41:57] zhenghaoxiang: no

[15:41:59] rotorhead: no

[15:42:18] Ben Johnson: ok....

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